89019440 has 40 divisors (see below), whose sum is σ = 207382560. Its totient is φ = 35536896.

The previous prime is 89019421. The next prime is 89019443. The reversal of 89019440 is 4491098.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 89019440.

It is not an unprimeable number, because it can be changed into a prime (89019443) 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, 60797 + ... + 62243.

It is an arithmetic number, because the mean of its divisors is an integer number (5184564).

Almost surely, 2^89019440 is an apocalyptic number.

89019440 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

89019440 is an abundant number, since it is smaller than the sum of its proper divisors (118363120).

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

89019440 is a wasteful number, since it uses less digits than its factorization.

89019440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2229 (or 2223 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 89019440 is about 9435.0113937398. The cubic root of 89019440 is about 446.5070145495.

The spelling of 89019440 in words is "eighty-nine million, nineteen thousand, four hundred forty".