74877940 has 12 divisors (see below), whose sum is σ = 157243716. Its totient is φ = 29951168.

The previous prime is 74877919. The next prime is 74877947. The reversal of 74877940 is 4977847.

It can be written as a sum of positive squares in 2 ways, for example, as 8976016 + 65901924 = 2996^2 + 8118^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74877947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1871929 + ... + 1871968.

It is an arithmetic number, because the mean of its divisors is an integer number (13103643).

Almost surely, 2^74877940 is an apocalyptic number.

It is an amenable number.

74877940 is an abundant number, since it is smaller than the sum of its proper divisors (82365776).

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

74877940 is a wasteful number, since it uses less digits than its factorization.

74877940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3743906 (or 3743904 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 46.

The square root of 74877940 is about 8653.2040308778. The cubic root of 74877940 is about 421.4874320051.

The spelling of 74877940 in words is "seventy-four million, eight hundred seventy-seven thousand, nine hundred forty".