74509402 has 24 divisors (see below), whose sum is σ = 129529440. Its totient is φ = 31872960.

The previous prime is 74509367. The next prime is 74509433. The reversal of 74509402 is 20490547.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 499 + ... + 12217.

It is an arithmetic number, because the mean of its divisors is an integer number (5397060).

Almost surely, 2^74509402 is an apocalyptic number.

74509402 is a deficient number, since it is larger than the sum of its proper divisors (55020038).

74509402 is a wasteful number, since it uses less digits than its factorization.

74509402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11766 (or 11749 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 74509402 is about 8631.8828768699. The cubic root of 74509402 is about 420.7947950811.

Adding to 74509402 its reverse (20490547), we get a palindrome (94999949).

The spelling of 74509402 in words is "seventy-four million, five hundred nine thousand, four hundred two".