74117412 has 18 divisors (see below), whose sum is σ = 187352438. Its totient is φ = 24705792.

The previous prime is 74117389. The next prime is 74117413. The reversal of 74117412 is 21471147.

It can be written as a sum of positive squares in only one way, i.e., 48776256 + 25341156 = 6984^2 + 5034^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (74117413) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1029373 + ... + 1029444.

Almost surely, 2^74117412 is an apocalyptic number.

It is an amenable number.

74117412 is an abundant number, since it is smaller than the sum of its proper divisors (113235026).

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

74117412 is a wasteful number, since it uses less digits than its factorization.

74117412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2058827 (or 2058822 counting only the distinct ones).

The product of its digits is 1568, while the sum is 27.

The square root of 74117412 is about 8609.1469960734. The cubic root of 74117412 is about 420.0555708783.

Adding to 74117412 its reverse (21471147), we get a palindrome (95588559).

It can be divided in two parts, 74117 and 412, that added together give a square (74529 = 273²).

The spelling of 74117412 in words is "seventy-four million, one hundred seventeen thousand, four hundred twelve".