38401957 has 4 divisors (see below), whose sum is σ = 41893056. Its totient is φ = 34910860.

The previous prime is 38401949. The next prime is 38401981. The reversal of 38401957 is 75910483.

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 38401957 - 2³ = 38401949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38401057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1745533 + ... + 1745554.

It is an arithmetic number, because the mean of its divisors is an integer number (10473264).

Almost surely, 2^38401957 is an apocalyptic number.

It is an amenable number.

38401957 is a deficient number, since it is larger than the sum of its proper divisors (3491099).

38401957 is a wasteful number, since it uses less digits than its factorization.

38401957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3491098.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 38401957 is about 6196.9312566786. The cubic root of 38401957 is about 337.3787972654.

The spelling of 38401957 in words is "thirty-eight million, four hundred one thousand, nine hundred fifty-seven".