74691960 has 64 divisors (see below), whose sum is σ = 256089600. Its totient is φ = 17072256.

The previous prime is 74691943. The next prime is 74691961. The reversal of 74691960 is 6919647.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74691961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43620 + ... + 45299.

It is an arithmetic number, because the mean of its divisors is an integer number (4001400).

Almost surely, 2^74691960 is an apocalyptic number.

74691960 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

74691960 is an abundant number, since it is smaller than the sum of its proper divisors (181397640).

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

74691960 is a wasteful number, since it uses less digits than its factorization.

74691960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88940 (or 88936 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 74691960 is about 8642.4510412267. The cubic root of 74691960 is about 421.1381826272.

The spelling of 74691960 in words is "seventy-four million, six hundred ninety-one thousand, nine hundred sixty".