38245657 has 4 divisors (see below), whose sum is σ = 38273536. Its totient is φ = 38217780.

The previous prime is 38245643. The next prime is 38245673. The reversal of 38245657 is 75654283.

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, and also an emirpimes, since its reverse is a distinct semiprime: 75654283 = 773 ⋅97871.

It is a cyclic number.

It is not a de Polignac number, because 38245657 - 2¹¹ = 38243609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38245607) 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, 11769 + ... + 14662.

It is an arithmetic number, because the mean of its divisors is an integer number (9568384).

Almost surely, 2^38245657 is an apocalyptic number.

It is an amenable number.

38245657 is a deficient number, since it is larger than the sum of its proper divisors (27879).

38245657 is a wasteful number, since it uses less digits than its factorization.

38245657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27878.

The product of its digits is 201600, while the sum is 40.

The square root of 38245657 is about 6184.3073177196. The cubic root of 38245657 is about 336.9204524800.

The spelling of 38245657 in words is "thirty-eight million, two hundred forty-five thousand, six hundred fifty-seven".