74899380 has 24 divisors (see below), whose sum is σ = 209718432. Its totient is φ = 19973152.

The previous prime is 74899369. The next prime is 74899403. The reversal of 74899380 is 8399847.

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, 624102 + ... + 624221.

It is an arithmetic number, because the mean of its divisors is an integer number (8738268).

Almost surely, 2^74899380 is an apocalyptic number.

It is an amenable number.

74899380 is an abundant number, since it is smaller than the sum of its proper divisors (134819052).

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

74899380 is a wasteful number, since it uses less digits than its factorization.

74899380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248335 (or 1248333 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 74899380 is about 8654.4427896890. The cubic root of 74899380 is about 421.5276567059.

It can be divided in two parts, 748 and 99380, that added together give a triangular number (100128 = T₄₄₇).

The spelling of 74899380 in words is "seventy-four million, eight hundred ninety-nine thousand, three hundred eighty".