88405220 has 24 divisors (see below), whose sum is σ = 186071424. Its totient is φ = 35282016.

The previous prime is 88405217. The next prime is 88405223. The reversal of 88405220 is 2250488.

It is an interprime number because it is at equal distance from previous prime (88405217) and next prime (88405223).

It is not an unprimeable number, because it can be changed into a prime (88405223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4487 + ... + 14033.

It is an arithmetic number, because the mean of its divisors is an integer number (7752976).

Almost surely, 2^88405220 is an apocalyptic number.

It is an amenable number.

88405220 is an abundant number, since it is smaller than the sum of its proper divisors (97666204).

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

88405220 is a wasteful number, since it uses less digits than its factorization.

88405220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10019 (or 10017 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 88405220 is about 9402.4050114851. The cubic root of 88405220 is about 445.4777010416.

The spelling of 88405220 in words is "eighty-eight million, four hundred five thousand, two hundred twenty".