74289740 has 24 divisors (see below), whose sum is σ = 178295712. Its totient is φ = 25470720.

The previous prime is 74289697. The next prime is 74289763. The reversal of 74289740 is 4798247.

74289740 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

74289740 is strictly pandigital in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265181 + ... + 265460.

It is an arithmetic number, because the mean of its divisors is an integer number (7428988).

Almost surely, 2^74289740 is an apocalyptic number.

74289740 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

74289740 is an abundant number, since it is smaller than the sum of its proper divisors (104005972).

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

74289740 is a wasteful number, since it uses less digits than its factorization.

74289740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530657 (or 530655 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 74289740 is about 8619.1496100253. The cubic root of 74289740 is about 420.3808714386.

The spelling of 74289740 in words is "seventy-four million, two hundred eighty-nine thousand, seven hundred forty".