88521740 has 48 divisors (see below), whose sum is σ = 194847744. Its totient is φ = 33739200.

The previous prime is 88521739. The next prime is 88521743. The reversal of 88521740 is 4712588.

It is a self number, because there is not a number n which added to its sum of digits gives 88521740.

It is not an unprimeable number, because it can be changed into a prime (88521743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40475 + ... + 42605.

It is an arithmetic number, because the mean of its divisors is an integer number (4059328).

Almost surely, 2^88521740 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 88521740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97423872).

88521740 is an abundant number, since it is smaller than the sum of its proper divisors (106326004).

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

88521740 is a wasteful number, since it uses less digits than its factorization.

88521740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2238 (or 2236 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 88521740 is about 9408.5992581255. The cubic root of 88521740 is about 445.6733315467.

The spelling of 88521740 in words is "eighty-eight million, five hundred twenty-one thousand, seven hundred forty".