38143476 has 72 divisors (see below), whose sum is σ = 115000704. Its totient is φ = 10422720.

The previous prime is 38143471. The next prime is 38143477. The reversal of 38143476 is 67434183.

It is a super-2 number, since 2×38143476² = 2909849522725152, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 38143476.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38143471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2506 + ... + 9086.

It is an arithmetic number, because the mean of its divisors is an integer number (1597232).

Almost surely, 2^38143476 is an apocalyptic number.

38143476 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38143476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57500352).

38143476 is an abundant number, since it is smaller than the sum of its proper divisors (76857228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38143476 is a wasteful number, since it uses less digits than its factorization.

38143476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6621 (or 6616 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 38143476 is about 6176.0404791420. The cubic root of 38143476 is about 336.6201345137.

The spelling of 38143476 in words is "thirty-eight million, one hundred forty-three thousand, four hundred seventy-six".