88442540 has 12 divisors (see below), whose sum is σ = 185729376. Its totient is φ = 35377008.

The previous prime is 88442539. The next prime is 88442561. The reversal of 88442540 is 4524488.

It is a self number, because there is not a number n which added to its sum of digits gives 88442540.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2211044 + ... + 2211083.

It is an arithmetic number, because the mean of its divisors is an integer number (15477448).

Almost surely, 2^88442540 is an apocalyptic number.

It is an amenable number.

88442540 is an abundant number, since it is smaller than the sum of its proper divisors (97286836).

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

88442540 is a wasteful number, since it uses less digits than its factorization.

88442540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4422136 (or 4422134 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 35.

The square root of 88442540 is about 9404.3894007001. The cubic root of 88442540 is about 445.5403779172.

The spelling of 88442540 in words is "eighty-eight million, four hundred forty-two thousand, five hundred forty".