88559640 has 192 divisors, whose sum is σ = 314496000. Its totient is φ = 21482496.

The previous prime is 88559629. The next prime is 88559659. The reversal of 88559640 is 4695588.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 594286 + ... + 594434.

It is an arithmetic number, because the mean of its divisors is an integer number (1638000).

Almost surely, 2^88559640 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 88559640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157248000).

88559640 is an abundant number, since it is smaller than the sum of its proper divisors (225936360).

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

88559640 is a wasteful number, since it uses less digits than its factorization.

88559640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306 (or 299 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The square root of 88559640 is about 9410.6131574940. The cubic root of 88559640 is about 445.7369265056.

The spelling of 88559640 in words is "eighty-eight million, five hundred fifty-nine thousand, six hundred forty".