74443880 has 32 divisors (see below), whose sum is σ = 191427840. Its totient is φ = 25523520.

The previous prime is 74443871. The next prime is 74443883. The reversal of 74443880 is 8834447.

It is not an unprimeable number, because it can be changed into a prime (74443883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132656 + ... + 133215.

It is an arithmetic number, because the mean of its divisors is an integer number (5982120).

Almost surely, 2^74443880 is an apocalyptic number.

74443880 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

74443880 is an abundant number, since it is smaller than the sum of its proper divisors (116983960).

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

74443880 is a wasteful number, since it uses less digits than its factorization.

74443880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265889 (or 265885 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 38.

The square root of 74443880 is about 8628.0866940475. The cubic root of 74443880 is about 420.6714128785.

The spelling of 74443880 in words is "seventy-four million, four hundred forty-three thousand, eight hundred eighty".