74433440 has 24 divisors (see below), whose sum is σ = 175849380. Its totient is φ = 29773312.

The previous prime is 74433433. The next prime is 74433479. The reversal of 74433440 is 4433447.

It can be written as a sum of positive squares in 2 ways, for example, as 70090384 + 4343056 = 8372^2 + 2084^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232445 + ... + 232764.

Almost surely, 2^74433440 is an apocalyptic number.

It is an amenable number.

74433440 is an abundant number, since it is smaller than the sum of its proper divisors (101415940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74433440 is a wasteful number, since it uses less digits than its factorization.

74433440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465224 (or 465216 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 29.

The square root of 74433440 is about 8627.4816719597. The cubic root of 74433440 is about 420.6517469912.

Adding to 74433440 its reverse (4433447), we get a palindrome (78866887).

The spelling of 74433440 in words is "seventy-four million, four hundred thirty-three thousand, four hundred forty".