38072490 has 32 divisors (see below), whose sum is σ = 91604736. Its totient is φ = 10127040.

The previous prime is 38072473. The next prime is 38072513. The reversal of 38072490 is 9427083.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12520 + ... + 15260.

It is an arithmetic number, because the mean of its divisors is an integer number (2862648).

Almost surely, 2^38072490 is an apocalyptic number.

38072490 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

38072490 is an abundant number, since it is smaller than the sum of its proper divisors (53532246).

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

38072490 is a wasteful number, since it uses less digits than its factorization.

38072490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3214.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 38072490 is about 6170.2909169666. The cubic root of 38072490 is about 336.4111852342.

The spelling of 38072490 in words is "thirty-eight million, seventy-two thousand, four hundred ninety".