38043657 has 12 divisors (see below), whose sum is σ = 55057860. Its totient is φ = 25313568.

The previous prime is 38043647. The next prime is 38043701. The reversal of 38043657 is 75634083.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1610361 + 36433296 = 1269^2 + 6036^2 .

It is not a de Polignac number, because 38043657 - 2¹⁰ = 38042633 is a prime.

It is a zygodrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (38043647) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1219 + ... + 8807.

It is an arithmetic number, because the mean of its divisors is an integer number (4588155).

Almost surely, 2^38043657 is an apocalyptic number.

It is an amenable number.

38043657 is a deficient number, since it is larger than the sum of its proper divisors (17014203).

38043657 is a wasteful number, since it uses less digits than its factorization.

38043657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8152 (or 8149 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 38043657 is about 6167.9540367937. The cubic root of 38043657 is about 336.3262403187.

The spelling of 38043657 in words is "thirty-eight million, forty-three thousand, six hundred fifty-seven".