74449539 has 6 divisors (see below), whose sum is σ = 107538236. Its totient is φ = 49633020.

The previous prime is 74449523. The next prime is 74449553. The reversal of 74449539 is 93594447.

It is a happy number.

74449539 is a `hidden beast` number, since 74 + 4 + 49 + 539 = 666.

It is not a de Polignac number, because 74449539 - 2⁴ = 74449523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74449494 and 74449503.

It is not an unprimeable number, because it can be changed into a prime (74449519) 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, 4136077 + ... + 4136094.

Almost surely, 2^74449539 is an apocalyptic number.

74449539 is a deficient number, since it is larger than the sum of its proper divisors (33088697).

74449539 is a wasteful number, since it uses less digits than its factorization.

74449539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8272177 (or 8272174 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 74449539 is about 8628.4146284239. The cubic root of 74449539 is about 420.6820720006.

The spelling of 74449539 in words is "seventy-four million, four hundred forty-nine thousand, five hundred thirty-nine".