38143860 has 24 divisors (see below), whose sum is σ = 106802976. Its totient is φ = 10171680.

The previous prime is 38143841. The next prime is 38143873. The reversal of 38143860 is 6834183.

It is a super-3 number, since 3×38143860³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 317806 + ... + 317925.

It is an arithmetic number, because the mean of its divisors is an integer number (4450124).

Almost surely, 2^38143860 is an apocalyptic number.

38143860 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38143860 is an abundant number, since it is smaller than the sum of its proper divisors (68659116).

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

38143860 is a wasteful number, since it uses less digits than its factorization.

38143860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635743 (or 635741 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 38143860 is about 6176.0715669429. The cubic root of 38143860 is about 336.6212641232.

The spelling of 38143860 in words is "thirty-eight million, one hundred forty-three thousand, eight hundred sixty".