89318440 has 32 divisors (see below), whose sum is σ = 207452160. Its totient is φ = 34574400.

The previous prime is 89318431. The next prime is 89318443. The reversal of 89318440 is 4481398.

89318440 = T₂₃₈₅ + T₂₃₈₆ + ... + T₂₄₁₅.

It is a self number, because there is not a number n which added to its sum of digits gives 89318440.

It is not an unprimeable number, because it can be changed into a prime (89318443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34776 + ... + 37255.

It is an arithmetic number, because the mean of its divisors is an integer number (6482880).

Almost surely, 2^89318440 is an apocalyptic number.

It is an amenable number.

89318440 is an abundant number, since it is smaller than the sum of its proper divisors (118133720).

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

89318440 is a wasteful number, since it uses less digits than its factorization.

89318440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72073 (or 72069 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 89318440 is about 9450.8433486118. The cubic root of 89318440 is about 447.0063676572.

It can be divided in two parts, 8931 and 8440, that added together give a palindrome (17371).

The spelling of 89318440 in words is "eighty-nine million, three hundred eighteen thousand, four hundred forty".