74402340 has 24 divisors (see below), whose sum is σ = 208326720. Its totient is φ = 19840608.

The previous prime is 74402333. The next prime is 74402411. The reversal of 74402340 is 4320447.

It is a self number, because there is not a number n which added to its sum of digits gives 74402340.

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, 619960 + ... + 620079.

It is an arithmetic number, because the mean of its divisors is an integer number (8680280).

Almost surely, 2^74402340 is an apocalyptic number.

It is an amenable number.

74402340 is an abundant number, since it is smaller than the sum of its proper divisors (133924380).

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

74402340 is a wasteful number, since it uses less digits than its factorization.

74402340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1240051 (or 1240049 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 24.

The square root of 74402340 is about 8625.6791036996. The cubic root of 74402340 is about 420.5931528442.

Adding to 74402340 its reverse (4320447), we get a palindrome (78722787).

The spelling of 74402340 in words is "seventy-four million, four hundred two thousand, three hundred forty".