89855040 has 224 divisors, whose sum is σ = 318357504. Its totient is φ = 21288960.

The previous prime is 89855039. The next prime is 89855041. The reversal of 89855040 is 4055898.

It is an interprime number because it is at equal distance from previous prime (89855039) and next prime (89855041).

It is a self number, because there is not a number n which added to its sum of digits gives 89855040.

It is not an unprimeable number, because it can be changed into a prime (89855041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 707457 + ... + 707583.

Almost surely, 2^89855040 is an apocalyptic number.

89855040 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 89855040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159178752).

89855040 is an abundant number, since it is smaller than the sum of its proper divisors (228502464).

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

89855040 is a wasteful number, since it uses less digits than its factorization.

89855040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 39.

The square root of 89855040 is about 9479.1898387995. The cubic root of 89855040 is about 447.8997437222.

The spelling of 89855040 in words is "eighty-nine million, eight hundred fifty-five thousand, forty".