74405956 has 6 divisors (see below), whose sum is σ = 130210430. Its totient is φ = 37202976.

The previous prime is 74405917. The next prime is 74405959. The reversal of 74405956 is 65950447.

It can be written as a sum of positive squares in only one way, i.e., 58003456 + 16402500 = 7616^2 + 4050^2 .

It is not an unprimeable number, because it can be changed into a prime (74405959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9300741 + ... + 9300748.

Almost surely, 2^74405956 is an apocalyptic number.

It is an amenable number.

74405956 is a deficient number, since it is larger than the sum of its proper divisors (55804474).

74405956 is a wasteful number, since it uses less digits than its factorization.

74405956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18601493 (or 18601491 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 74405956 is about 8625.8887078376. Note that the first 3 decimals coincide. The cubic root of 74405956 is about 420.5999664301.

The spelling of 74405956 in words is "seventy-four million, four hundred five thousand, nine hundred fifty-six".