2168440572 has 24 divisors (see below), whose sum is σ = 5086190592. Its totient is φ = 719028400.

The previous prime is 2168440543. The next prime is 2168440583. The reversal of 2168440572 is 2750448612.

It is a self number, because there is not a number n which added to its sum of digits gives 2168440572.

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, 470754 + ... + 475337.

It is an arithmetic number, because the mean of its divisors is an integer number (211924608).

Almost surely, 2^2168440572 is an apocalyptic number.

It is an amenable number.

2168440572 is an abundant number, since it is smaller than the sum of its proper divisors (2917750020).

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

2168440572 is a wasteful number, since it uses less digits than its factorization.

2168440572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946289 (or 946287 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 2168440572 is about 46566.5177139111. The cubic root of 2168440572 is about 1294.3423904861.

The spelling of 2168440572 in words is "two billion, one hundred sixty-eight million, four hundred forty thousand, five hundred seventy-two".