2105770772 has 24 divisors (see below), whose sum is σ = 4291007616. Its totient is φ = 885444768.

The previous prime is 2105770747. The next prime is 2105770781. The reversal of 2105770772 is 2770775012.

It is a happy number.

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, 708008 + ... + 710975.

It is an arithmetic number, because the mean of its divisors is an integer number (178791984).

Almost surely, 2^2105770772 is an apocalyptic number.

It is an amenable number.

2105770772 is an abundant number, since it is smaller than the sum of its proper divisors (2185236844).

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

2105770772 is a wasteful number, since it uses less digits than its factorization.

2105770772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1419047 (or 1419045 counting only the distinct ones).

The product of its (nonzero) digits is 48020, while the sum is 38.

The square root of 2105770772 is about 45888.6780371804. The cubic root of 2105770772 is about 1281.7510969813.

The spelling of 2105770772 in words is "two billion, one hundred five million, seven hundred seventy thousand, seven hundred seventy-two".