88561400 has 24 divisors (see below), whose sum is σ = 205905720. Its totient is φ = 35424480.

The previous prime is 88561397. The next prime is 88561409. The reversal of 88561400 is 416588.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88561409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 221204 + ... + 221603.

It is an arithmetic number, because the mean of its divisors is an integer number (8579405).

Almost surely, 2^88561400 is an apocalyptic number.

It is an amenable number.

88561400 is an abundant number, since it is smaller than the sum of its proper divisors (117344320).

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

88561400 is a wasteful number, since it uses less digits than its factorization.

88561400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442823 (or 442814 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 88561400 is about 9410.7066684708. The cubic root of 88561400 is about 445.7398792871.

Adding to 88561400 its reverse (416588), we get a palindrome (88977988).

The spelling of 88561400 in words is "eighty-eight million, five hundred sixty-one thousand, four hundred".