88195440 has 80 divisors (see below), whose sum is σ = 276544800. Its totient is φ = 23248896.

The previous prime is 88195427. The next prime is 88195487. The reversal of 88195440 is 4459188.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19296 + ... + 23424.

It is an arithmetic number, because the mean of its divisors is an integer number (3456810).

Almost surely, 2^88195440 is an apocalyptic number.

88195440 is a gapful number since it is divisible by the number (80) 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 88195440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138272400).

88195440 is an abundant number, since it is smaller than the sum of its proper divisors (188349360).

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

88195440 is a wasteful number, since it uses less digits than its factorization.

88195440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4234 (or 4228 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 88195440 is about 9391.2427292665. The cubic root of 88195440 is about 445.1250584844.

The spelling of 88195440 in words is "eighty-eight million, one hundred ninety-five thousand, four hundred forty".