87418044 has 72 divisors (see below), whose sum is σ = 253693440. Its totient is φ = 24862752.

The previous prime is 87418033. The next prime is 87418061. The reversal of 87418044 is 44081478.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65617 + ... + 66935.

It is an arithmetic number, because the mean of its divisors is an integer number (3523520).

Almost surely, 2^87418044 is an apocalyptic number.

87418044 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87418044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126846720).

87418044 is an abundant number, since it is smaller than the sum of its proper divisors (166275396).

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

87418044 is a wasteful number, since it uses less digits than its factorization.

87418044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1599 (or 1594 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 36.

The square root of 87418044 is about 9349.7617081934. The cubic root of 87418044 is about 443.8133498396.

The spelling of 87418044 in words is "eighty-seven million, four hundred eighteen thousand, forty-four".