74224936 has 8 divisors (see below), whose sum is σ = 139171770. Its totient is φ = 37112464.

The previous prime is 74224921. The next prime is 74224939. The reversal of 74224936 is 63942247.

It can be written as a sum of positive squares in only one way, i.e., 37136836 + 37088100 = 6094^2 + 6090^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×74224936² = 11018682248408192, which contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 74224895 and 74224904.

It is not an unprimeable number, because it can be changed into a prime (74224939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4639051 + ... + 4639066.

Almost surely, 2^74224936 is an apocalyptic number.

It is an amenable number.

74224936 is a deficient number, since it is larger than the sum of its proper divisors (64946834).

74224936 is a wasteful number, since it uses less digits than its factorization.

74224936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9278123 (or 9278119 counting only the distinct ones).

The product of its digits is 72576, while the sum is 37.

The square root of 74224936 is about 8615.3894862624. The cubic root of 74224936 is about 420.2586011353.

The spelling of 74224936 in words is "seventy-four million, two hundred twenty-four thousand, nine hundred thirty-six".