88915440 has 320 divisors, whose sum is σ = 325693440. Its totient is φ = 19906560.

The previous prime is 88915439. The next prime is 88915469. The reversal of 88915440 is 4451988.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2403102 + ... + 2403138.

It is an arithmetic number, because the mean of its divisors is an integer number (1017792).

Almost surely, 2^88915440 is an apocalyptic number.

88915440 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 88915440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162846720).

88915440 is an abundant number, since it is smaller than the sum of its proper divisors (236778000).

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

88915440 is a wasteful number, since it uses less digits than its factorization.

88915440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 88915440 is about 9429.4983959912. The cubic root of 88915440 is about 446.3330644362. Note that the first 3 decimals are identical.

The spelling of 88915440 in words is "eighty-eight million, nine hundred fifteen thousand, four hundred forty".