2661572 has 12 divisors (see below), whose sum is σ = 4692240. Its totient is φ = 1320936.

The previous prime is 2661569. The next prime is 2661611. The reversal of 2661572 is 2751662.

It is a super-2 number, since 2×2661572² = 14167931022368, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1838 + ... + 2949.

It is an arithmetic number, because the mean of its divisors is an integer number (391020).

2^2661572 is an apocalyptic number.

It is an amenable number.

2661572 is a deficient number, since it is larger than the sum of its proper divisors (2030668).

2661572 is a wasteful number, since it uses less digits than its factorization.

2661572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4930 (or 4928 counting only the distinct ones).

The product of its digits is 5040, while the sum is 29.

The square root of 2661572 is about 1631.4324993698. The cubic root of 2661572 is about 138.5838874566.

The spelling of 2661572 in words is "two million, six hundred sixty-one thousand, five hundred seventy-two".