38143669 has 4 divisors (see below), whose sum is σ = 38197440. Its totient is φ = 38089900.

The previous prime is 38143639. The next prime is 38143673. The reversal of 38143669 is 96634183.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 38143669 - 2¹³ = 38135477 is a prime.

It is a super-2 number, since 2×38143669² = 2909878969563122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38143639) 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 3 ways as a sum of consecutive naturals, for example, 25807 + ... + 27244.

It is an arithmetic number, because the mean of its divisors is an integer number (9549360).

Almost surely, 2^38143669 is an apocalyptic number.

It is an amenable number.

38143669 is a deficient number, since it is larger than the sum of its proper divisors (53771).

38143669 is an equidigital number, since it uses as much as digits as its factorization.

38143669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53770.

The product of its digits is 93312, while the sum is 40.

The square root of 38143669 is about 6176.0561040198. The cubic root of 38143669 is about 336.6207022611.

The spelling of 38143669 in words is "thirty-eight million, one hundred forty-three thousand, six hundred sixty-nine".