88142540 has 12 divisors (see below), whose sum is σ = 185099376. Its totient is φ = 35257008.

The previous prime is 88142491. The next prime is 88142557. The reversal of 88142540 is 4524188.

It is a happy number.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 88142497 and 88142506.

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, 2203544 + ... + 2203583.

It is an arithmetic number, because the mean of its divisors is an integer number (15424948).

Almost surely, 2^88142540 is an apocalyptic number.

It is an amenable number.

88142540 is an abundant number, since it is smaller than the sum of its proper divisors (96956836).

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

88142540 is a wasteful number, since it uses less digits than its factorization.

88142540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4407136 (or 4407134 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 32.

The square root of 88142540 is about 9388.4258531449. The cubic root of 88142540 is about 445.0360447174.

The spelling of 88142540 in words is "eighty-eight million, one hundred forty-two thousand, five hundred forty".