89831040 has 256 divisors, whose sum is σ = 318729600. Its totient is φ = 21381120.

The previous prime is 89831039. The next prime is 89831059. The reversal of 89831040 is 4013898.

It is a junction number, because it is equal to n+sod(n) for n = 89830992 and 89831010.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1472610 + ... + 1472670.

Almost surely, 2^89831040 is an apocalyptic number.

89831040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89831040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159364800).

89831040 is an abundant number, since it is smaller than the sum of its proper divisors (228898560).

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

89831040 is a wasteful number, since it uses less digits than its factorization.

89831040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 89831040 is about 9477.9238232854. The cubic root of 89831040 is about 447.8598626313.

The spelling of 89831040 in words is "eighty-nine million, eight hundred thirty-one thousand, forty".