88140540 has 96 divisors (see below), whose sum is σ = 255467520. Its totient is φ = 22692096.

The previous prime is 88140539. The next prime is 88140551. The reversal of 88140540 is 4504188.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 88140498 and 88140507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 327526 + ... + 327794.

It is an arithmetic number, because the mean of its divisors is an integer number (2661120).

Almost surely, 2^88140540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 88140540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127733760).

88140540 is an abundant number, since it is smaller than the sum of its proper divisors (167326980).

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

88140540 is a wasteful number, since it uses less digits than its factorization.

88140540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451 (or 449 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 88140540 is about 9388.3193384120. The cubic root of 88140540 is about 445.0326786590.

The spelling of 88140540 in words is "eighty-eight million, one hundred forty thousand, five hundred forty".