2120418872 has 32 divisors (see below), whose sum is σ = 4670855280. Its totient is φ = 889685760.

The previous prime is 2120418869. The next prime is 2120418887. The reversal of 2120418872 is 2788140212.

It is a zygodrome in base 2.

It is a congruent number.

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, 925613 + ... + 927900.

Almost surely, 2^2120418872 is an apocalyptic number.

2120418872 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2120418872 is an abundant number, since it is smaller than the sum of its proper divisors (2550436408).

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

2120418872 is a wasteful number, since it uses less digits than its factorization.

2120418872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1853543 (or 1853539 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 35.

The square root of 2120418872 is about 46048.0061674770. The cubic root of 2120418872 is about 1284.7162584666.

The spelling of 2120418872 in words is "two billion, one hundred twenty million, four hundred eighteen thousand, eight hundred seventy-two".