74924949 has 16 divisors (see below), whose sum is σ = 109260864. Its totient is φ = 45292800.

The previous prime is 74924929. The next prime is 74924959. The reversal of 74924949 is 94942947.

It is not a de Polignac number, because 74924949 - 2⁷ = 74924821 is a prime.

It is a super-2 number, since 2×74924949² = 11227495965305202, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 74924898 and 74924907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74924929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11197 + ... + 16589.

It is an arithmetic number, because the mean of its divisors is an integer number (6828804).

Almost surely, 2^74924949 is an apocalyptic number.

It is an amenable number.

74924949 is a deficient number, since it is larger than the sum of its proper divisors (34335915).

74924949 is a wasteful number, since it uses less digits than its factorization.

74924949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5828.

The product of its digits is 653184, while the sum is 48.

The square root of 74924949 is about 8655.9198817919. The cubic root of 74924949 is about 421.5756180037.

The spelling of 74924949 in words is "seventy-four million, nine hundred twenty-four thousand, nine hundred forty-nine".