88642020 has 48 divisors (see below), whose sum is σ = 256209408. Its totient is φ = 22874880.

The previous prime is 88642019. The next prime is 88642027. The reversal of 88642020 is 2024688.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (88642027) 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 15 ways as a sum of consecutive naturals, for example, 21969 + ... + 25688.

It is an arithmetic number, because the mean of its divisors is an integer number (5337696).

Almost surely, 2^88642020 is an apocalyptic number.

It is an amenable number.

88642020 is an abundant number, since it is smaller than the sum of its proper divisors (167567388).

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

88642020 is a wasteful number, since it uses less digits than its factorization.

88642020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47700 (or 47698 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 88642020 is about 9414.9891131111. The cubic root of 88642020 is about 445.8750948934.

The spelling of 88642020 in words is "eighty-eight million, six hundred forty-two thousand, twenty".