74130724 has 6 divisors (see below), whose sum is σ = 129728774. Its totient is φ = 37065360.

The previous prime is 74130713. The next prime is 74130733. The reversal of 74130724 is 42703147.

It can be written as a sum of positive squares in only one way, i.e., 72080100 + 2050624 = 8490^2 + 1432^2 .

It is a junction number, because it is equal to n+sod(n) for n = 74130692 and 74130701.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9266337 + ... + 9266344.

Almost surely, 2^74130724 is an apocalyptic number.

It is an amenable number.

74130724 is a deficient number, since it is larger than the sum of its proper divisors (55598050).

74130724 is a wasteful number, since it uses less digits than its factorization.

74130724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18532685 (or 18532683 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 74130724 is about 8609.9200925444. The cubic root of 74130724 is about 420.0807176684.

The spelling of 74130724 in words is "seventy-four million, one hundred thirty thousand, seven hundred twenty-four".