2161970262 has 48 divisors (see below), whose sum is σ = 4804319520. Its totient is φ = 702230400.

The previous prime is 2161970231. The next prime is 2161970281. The reversal of 2161970262 is 2620791612.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 972312 + ... + 974532.

It is an arithmetic number, because the mean of its divisors is an integer number (100089990).

Almost surely, 2^2161970262 is an apocalyptic number.

2161970262 is an abundant number, since it is smaller than the sum of its proper divisors (2642349258).

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

2161970262 is a wasteful number, since it uses less digits than its factorization.

2161970262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3589 (or 3586 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 2161970262 is about 46496.9919672230. The cubic root of 2161970262 is about 1293.0537316869.

The spelling of 2161970262 in words is "two billion, one hundred sixty-one million, nine hundred seventy thousand, two hundred sixty-two".