117620420 has 12 divisors (see below), whose sum is σ = 247002924. Its totient is φ = 47048160.

The previous prime is 117620411. The next prime is 117620429. The reversal of 117620420 is 24026711.

It is an interprime number because it is at equal distance from previous prime (117620411) and next prime (117620429).

It can be written as a sum of positive squares in 2 ways, for example, as 76352644 + 41267776 = 8738^2 + 6424^2 .

It is not an unprimeable number, because it can be changed into a prime (117620429) 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 3 ways as a sum of consecutive naturals, for example, 2940491 + ... + 2940530.

It is an arithmetic number, because the mean of its divisors is an integer number (20583577).

Almost surely, 2^117620420 is an apocalyptic number.

117620420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117620420 is an abundant number, since it is smaller than the sum of its proper divisors (129382504).

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

117620420 is a wasteful number, since it uses less digits than its factorization.

117620420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5881030 (or 5881028 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 117620420 is about 10845.2948323224. The cubic root of 117620420 is about 489.9603188747.

The spelling of 117620420 in words is "one hundred seventeen million, six hundred twenty thousand, four hundred twenty".