38400073974 has 16 divisors (see below), whose sum is σ = 85333497840. Its totient is φ = 12800024640.

The previous prime is 38400073963. The next prime is 38400073993. The reversal of 38400073974 is 47937000483.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 355556187 + ... + 355556294.

It is an arithmetic number, because the mean of its divisors is an integer number (5333343615).

Almost surely, 2^38400073974 is an apocalyptic number.

38400073974 is an abundant number, since it is smaller than the sum of its proper divisors (46933423866).

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

38400073974 is a wasteful number, since it uses less digits than its factorization.

38400073974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711112492 (or 711112486 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The spelling of 38400073974 in words is "thirty-eight billion, four hundred million, seventy-three thousand, nine hundred seventy-four".