38934690 has 32 divisors (see below), whose sum is σ = 95031360. Its totient is φ = 10206144.

The previous prime is 38934673. The next prime is 38934697. The reversal of 38934690 is 9643983.

It is a super-2 number, since 2×38934690² = 3031820170792200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38934697) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9229 + ... + 12768.

It is an arithmetic number, because the mean of its divisors is an integer number (2969730).

Almost surely, 2^38934690 is an apocalyptic number.

38934690 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

38934690 is an abundant number, since it is smaller than the sum of its proper divisors (56096670).

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

38934690 is a wasteful number, since it uses less digits than its factorization.

38934690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22066.

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 38934690 is about 6239.7668225664. The cubic root of 38934690 is about 338.9317393734.

The spelling of 38934690 in words is "thirty-eight million, nine hundred thirty-four thousand, six hundred ninety".