38506916 has 24 divisors (see below), whose sum is σ = 78072960. Its totient is φ = 16276032.

The previous prime is 38506903. The next prime is 38506927. The reversal of 38506916 is 61960583.

It is a self number, because there is not a number n which added to its sum of digits gives 38506916.

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 7 ways as a sum of consecutive naturals, for example, 7376 + ... + 11463.

It is an arithmetic number, because the mean of its divisors is an integer number (3253040).

Almost surely, 2^38506916 is an apocalyptic number.

It is an amenable number.

38506916 is an abundant number, since it is smaller than the sum of its proper divisors (39566044).

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

38506916 is a wasteful number, since it uses less digits than its factorization.

38506916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18923 (or 18921 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 38506916 is about 6205.3941051314. The cubic root of 38506916 is about 337.6858886352.

The spelling of 38506916 in words is "thirty-eight million, five hundred six thousand, nine hundred sixteen".