74012530 has 16 divisors (see below), whose sum is σ = 135100224. Its totient is φ = 29187760.

The previous prime is 74012513. The next prime is 74012537. The reversal of 74012530 is 3521047.

It is not an unprimeable number, because it can be changed into a prime (74012537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51412 + ... + 52831.

It is an arithmetic number, because the mean of its divisors is an integer number (8443764).

Almost surely, 2^74012530 is an apocalyptic number.

74012530 is a deficient number, since it is larger than the sum of its proper divisors (61087694).

74012530 is a wasteful number, since it uses less digits than its factorization.

74012530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104321.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 74012530 is about 8603.0535276726. The cubic root of 74012530 is about 419.8573400596.

Adding to 74012530 its reverse (3521047), we get a palindrome (77533577).

The spelling of 74012530 in words is "seventy-four million, twelve thousand, five hundred thirty".