116220420 has 60 divisors (see below), whose sum is σ = 364592844. Its totient is φ = 30991680.

The previous prime is 116220413. The next prime is 116220427. The reversal of 116220420 is 24022611.

116220420 is a `hidden beast` number, since 1 + 1 + 622 + 0 + 42 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (116220413) and next prime (116220427).

It can be written as a sum of positive squares in 2 ways, for example, as 57972996 + 58247424 = 7614^2 + 7632^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 116220393 and 116220402.

It is not an unprimeable number, because it can be changed into a prime (116220427) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 34251 + ... + 37490.

Almost surely, 2^116220420 is an apocalyptic number.

116220420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

116220420 is an abundant number, since it is smaller than the sum of its proper divisors (248372424).

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

116220420 is a wasteful number, since it uses less digits than its factorization.

116220420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71762 (or 71751 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 116220420 is about 10780.5574994988. The cubic root of 116220420 is about 488.0086052859.

The spelling of 116220420 in words is "one hundred sixteen million, two hundred twenty thousand, four hundred twenty".