89440388 has 12 divisors (see below), whose sum is σ = 157518732. Its totient is φ = 44435040.

The previous prime is 89440367. The next prime is 89440397. The reversal of 89440388 is 88304498.

It can be written as a sum of positive squares in 2 ways, for example, as 43850884 + 45589504 = 6622^2 + 6752^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70583 + ... + 71838.

It is an arithmetic number, because the mean of its divisors is an integer number (13126561).

Almost surely, 2^89440388 is an apocalyptic number.

It is an amenable number.

89440388 is a deficient number, since it is larger than the sum of its proper divisors (68078344).

89440388 is a wasteful number, since it uses less digits than its factorization.

89440388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142582 (or 142580 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 44.

The square root of 89440388 is about 9457.2928473216. The cubic root of 89440388 is about 447.2097102996.

The spelling of 89440388 in words is "eighty-nine million, four hundred forty thousand, three hundred eighty-eight".