2162547844 has 12 divisors (see below), whose sum is σ = 3846499468. Its totient is φ = 1063548000.

The previous prime is 2162547797. The next prime is 2162547857. The reversal of 2162547844 is 4487452612.

It can be written as a sum of positive squares in 2 ways, for example, as 1179098244 + 983449600 = 34338^2 + 31360^2 .

It is a super-2 number, since 2×2162547844² = 9353226355178096672, which contains 22 as substring.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2162547844.

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 3 ways as a sum of consecutive naturals, for example, 4431207 + ... + 4431694.

Almost surely, 2^2162547844 is an apocalyptic number.

It is an amenable number.

2162547844 is a deficient number, since it is larger than the sum of its proper divisors (1683951624).

2162547844 is a wasteful number, since it uses less digits than its factorization.

2162547844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8862966 (or 8862964 counting only the distinct ones).

The product of its digits is 430080, while the sum is 43.

The square root of 2162547844 is about 46503.2025133754. The cubic root of 2162547844 is about 1293.1688701905.

The spelling of 2162547844 in words is "two billion, one hundred sixty-two million, five hundred forty-seven thousand, eight hundred forty-four".