74278938 has 8 divisors (see below), whose sum is σ = 148557888. Its totient is φ = 24759644.

The previous prime is 74278913. The next prime is 74278973. The reversal of 74278938 is 83987247.

It is a sphenic number, since it is the product of 3 distinct primes.

74278938 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6189906 + ... + 6189917.

It is an arithmetic number, because the mean of its divisors is an integer number (18569736).

Almost surely, 2^74278938 is an apocalyptic number.

74278938 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.

74278938 is a wasteful number, since it uses less digits than its factorization.

74278938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12379828.

The product of its digits is 677376, while the sum is 48.

The square root of 74278938 is about 8618.5229593011. The cubic root of 74278938 is about 420.3604954787.

The spelling of 74278938 in words is "seventy-four million, two hundred seventy-eight thousand, nine hundred thirty-eight".