2107942780 has 24 divisors (see below), whose sum is σ = 4482717120. Its totient is φ = 832503360.

The previous prime is 2107942769. The next prime is 2107942831. The reversal of 2107942780 is 872497012.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 665491 + ... + 668650.

It is an arithmetic number, because the mean of its divisors is an integer number (186779880).

Almost surely, 2^2107942780 is an apocalyptic number.

2107942780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2107942780 is an abundant number, since it is smaller than the sum of its proper divisors (2374774340).

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

2107942780 is a wasteful number, since it uses less digits than its factorization.

2107942780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334229 (or 1334227 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 2107942780 is about 45912.3379931800. The cubic root of 2107942780 is about 1282.1916351191.

The spelling of 2107942780 in words is "two billion, one hundred seven million, nine hundred forty-two thousand, seven hundred eighty".