117450020 has 24 divisors (see below), whose sum is σ = 259627200. Its totient is φ = 44507232.

The previous prime is 117450019. The next prime is 117450023. The reversal of 117450020 is 20054711.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 117449974 and 117450001.

It is not an unprimeable number, because it can be changed into a prime (117450023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154160 + ... + 154919.

It is an arithmetic number, because the mean of its divisors is an integer number (10817800).

Almost surely, 2^117450020 is an apocalyptic number.

117450020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117450020 is an abundant number, since it is smaller than the sum of its proper divisors (142177180).

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

117450020 is a wasteful number, since it uses less digits than its factorization.

117450020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309107 (or 309105 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 117450020 is about 10837.4360436406. The cubic root of 117450020 is about 489.7235981064.

The spelling of 117450020 in words is "one hundred seventeen million, four hundred fifty thousand, twenty".