2118107400 has 48 divisors (see below), whose sum is σ = 6566134800. Its totient is φ = 564828480.

The previous prime is 2118107377. The next prime is 2118107413. The reversal of 2118107400 is 47018112.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1764490 + ... + 1765689.

It is an arithmetic number, because the mean of its divisors is an integer number (136794475).

Almost surely, 2^2118107400 is an apocalyptic number.

2118107400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2118107400 is an abundant number, since it is smaller than the sum of its proper divisors (4448027400).

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

2118107400 is a wasteful number, since it uses less digits than its factorization.

2118107400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3530198 (or 3530189 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 24.

The square root of 2118107400 is about 46022.9008212216. The cubic root of 2118107400 is about 1284.2492649868.

The spelling of 2118107400 in words is "two billion, one hundred eighteen million, one hundred seven thousand, four hundred".