74782444 has 24 divisors (see below), whose sum is σ = 143656128. Its totient is φ = 33780240.

The previous prime is 74782399. The next prime is 74782451. The reversal of 74782444 is 44428747.

It is a happy number.

It is a super-2 number, since 2×74782444² = 11184827861226272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 74782397 and 74782406.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1959 + ... + 12385.

It is an arithmetic number, because the mean of its divisors is an integer number (5985672).

Almost surely, 2^74782444 is an apocalyptic number.

It is an amenable number.

74782444 is a deficient number, since it is larger than the sum of its proper divisors (68873684).

74782444 is a wasteful number, since it uses less digits than its factorization.

74782444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10605 (or 10603 counting only the distinct ones).

The product of its digits is 200704, while the sum is 40.

The square root of 74782444 is about 8647.6843143121. The cubic root of 74782444 is about 421.3081736588.

The spelling of 74782444 in words is "seventy-four million, seven hundred eighty-two thousand, four hundred forty-four".