88289240 has 64 divisors (see below), whose sum is σ = 220872960. Its totient is φ = 31541760.

The previous prime is 88289221. The next prime is 88289263. The reversal of 88289240 is 4298288.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13382 + ... + 18858.

It is an arithmetic number, because the mean of its divisors is an integer number (3451140).

Almost surely, 2^88289240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 88289240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110436480).

88289240 is an abundant number, since it is smaller than the sum of its proper divisors (132583720).

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

88289240 is a wasteful number, since it uses less digits than its factorization.

88289240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5532 (or 5528 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 41.

The square root of 88289240 is about 9396.2354163782. The cubic root of 88289240 is about 445.2828063878.

The spelling of 88289240 in words is "eighty-eight million, two hundred eighty-nine thousand, two hundred forty".