89321440 has 48 divisors (see below), whose sum is σ = 227259648. Its totient is φ = 32979456.

The previous prime is 89321437. The next prime is 89321461. The reversal of 89321440 is 4412398.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19392 + ... + 23551.

It is an arithmetic number, because the mean of its divisors is an integer number (4734576).

Almost surely, 2^89321440 is an apocalyptic number.

89321440 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

89321440 is an abundant number, since it is smaller than the sum of its proper divisors (137938208).

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

89321440 is a wasteful number, since it uses less digits than its factorization.

89321440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42971 (or 42963 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 89321440 is about 9451.0020632735. The cubic root of 89321440 is about 447.0113722381.

The spelling of 89321440 in words is "eighty-nine million, three hundred twenty-one thousand, four hundred forty".