88331840 has 28 divisors (see below), whose sum is σ = 210340956. Its totient is φ = 35332608.

The previous prime is 88331809. The next prime is 88331849. The reversal of 88331840 is 4813388.

It can be written as a sum of positive squares in 2 ways, for example, as 9193024 + 79138816 = 3032^2 + 8896^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 88331840.

It is not an unprimeable number, because it can be changed into a prime (88331849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137699 + ... + 138338.

It is an arithmetic number, because the mean of its divisors is an integer number (7512177).

Almost surely, 2^88331840 is an apocalyptic number.

88331840 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

88331840 is an abundant number, since it is smaller than the sum of its proper divisors (122009116).

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

88331840 is a wasteful number, since it uses less digits than its factorization.

88331840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276054 (or 276044 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 88331840 is about 9398.5020082990. The cubic root of 88331840 is about 445.3544119329.

It can be divided in two parts, 883 and 31840, that added together give a palindrome (32723).

The spelling of 88331840 in words is "eighty-eight million, three hundred thirty-one thousand, eight hundred forty".