2188370020 has 24 divisors (see below), whose sum is σ = 4631768064. Its totient is φ = 868454496.

The previous prime is 2188369979. The next prime is 2188370057. The reversal of 2188370020 is 200738812.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 428242 + ... + 433321.

It is an arithmetic number, because the mean of its divisors is an integer number (192990336).

Almost surely, 2^2188370020 is an apocalyptic number.

2188370020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2188370020 is an abundant number, since it is smaller than the sum of its proper divisors (2443398044).

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

2188370020 is a wasteful number, since it uses less digits than its factorization.

2188370020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861699 (or 861697 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 2188370020 is about 46780.0173150887. The cubic root of 2188370020 is about 1298.2956006984.

The spelling of 2188370020 in words is "two billion, one hundred eighty-eight million, three hundred seventy thousand, twenty".