38401790 has 48 divisors (see below), whose sum is σ = 81259200. Its totient is φ = 13027392.

The previous prime is 38401751. The next prime is 38401813. The reversal of 38401790 is 9710483.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53051 + ... + 53769.

It is an arithmetic number, because the mean of its divisors is an integer number (1692900).

Almost surely, 2^38401790 is an apocalyptic number.

38401790 is an abundant number, since it is smaller than the sum of its proper divisors (42857410).

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

38401790 is a wasteful number, since it uses less digits than its factorization.

38401790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849 (or 842 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 38401790 is about 6196.9177822527. The cubic root of 38401790 is about 337.3783082075.

The spelling of 38401790 in words is "thirty-eight million, four hundred one thousand, seven hundred ninety".