88641940 has 12 divisors (see below), whose sum is σ = 186148116. Its totient is φ = 35456768.

The previous prime is 88641937. The next prime is 88641947. The reversal of 88641940 is 4914688.

It can be written as a sum of positive squares in 2 ways, for example, as 50523664 + 38118276 = 7108^2 + 6174^2 .

It is a junction number, because it is equal to n+sod(n) for n = 88641893 and 88641902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88641947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2216029 + ... + 2216068.

It is an arithmetic number, because the mean of its divisors is an integer number (15512343).

Almost surely, 2^88641940 is an apocalyptic number.

It is an amenable number.

88641940 is an abundant number, since it is smaller than the sum of its proper divisors (97506176).

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

88641940 is a wasteful number, since it uses less digits than its factorization.

88641940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4432106 (or 4432104 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 88641940 is about 9414.9848645656. The cubic root of 88641940 is about 445.8749607583.

The spelling of 88641940 in words is "eighty-eight million, six hundred forty-one thousand, nine hundred forty".