74371890 has 32 divisors (see below), whose sum is σ = 187888320. Its totient is φ = 18788544.

The previous prime is 74371867. The next prime is 74371931. The reversal of 74371890 is 9817347.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64669 + ... + 65808.

It is an arithmetic number, because the mean of its divisors is an integer number (5871510).

Almost surely, 2^74371890 is an apocalyptic number.

74371890 is an abundant number, since it is smaller than the sum of its proper divisors (113516430).

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

74371890 is a wasteful number, since it uses less digits than its factorization.

74371890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130506.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 74371890 is about 8623.9138446531. The cubic root of 74371890 is about 420.5357675117.

The spelling of 74371890 in words is "seventy-four million, three hundred seventy-one thousand, eight hundred ninety".