38907428 has 12 divisors (see below), whose sum is σ = 77814912. Its totient is φ = 16674600.

The previous prime is 38907419. The next prime is 38907439. The reversal of 38907428 is 82470983.

38907428 is an admirable number.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

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 3 ways as a sum of consecutive naturals, for example, 694748 + ... + 694803.

It is an arithmetic number, because the mean of its divisors is an integer number (6484576).

Almost surely, 2^38907428 is an apocalyptic number.

It is an amenable number.

38907428 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

38907428 is a wasteful number, since it uses less digits than its factorization.

38907428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389562 (or 1389560 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 38907428 is about 6237.5819032699. The cubic root of 38907428 is about 338.8526144378.

The spelling of 38907428 in words is "thirty-eight million, nine hundred seven thousand, four hundred twenty-eight".