38055640 has 32 divisors (see below), whose sum is σ = 97858080. Its totient is φ = 13047552.

The previous prime is 38055629. The next prime is 38055671. The reversal of 38055640 is 4655083.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67677 + ... + 68236.

It is an arithmetic number, because the mean of its divisors is an integer number (3058065).

Almost surely, 2^38055640 is an apocalyptic number.

It is an amenable number.

38055640 is an abundant number, since it is smaller than the sum of its proper divisors (59802440).

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

38055640 is a wasteful number, since it uses less digits than its factorization.

38055640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135931 (or 135927 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 38055640 is about 6168.9253521177. The cubic root of 38055640 is about 336.3615486512.

The spelling of 38055640 in words is "thirty-eight million, fifty-five thousand, six hundred forty".