2639572 has 24 divisors (see below), whose sum is σ = 5193216. Its totient is φ = 1164768.

The previous prime is 2639569. The next prime is 2639587. The reversal of 2639572 is 2759362.

It is a happy number.

It is a d-powerful number, because it can be written as 2 + 6⁵ + 3³ + 9⁶ + 5⁵ + 7² + 2²¹ .

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, 93 + ... + 2299.

It is an arithmetic number, because the mean of its divisors is an integer number (216384).

2^2639572 is an apocalyptic number.

It is an amenable number.

2639572 is a deficient number, since it is larger than the sum of its proper divisors (2553644).

2639572 is a wasteful number, since it uses less digits than its factorization.

2639572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2247 (or 2245 counting only the distinct ones).

The product of its digits is 22680, while the sum is 34.

The square root of 2639572 is about 1624.6759676933. The cubic root of 2639572 is about 138.2009953553.

The spelling of 2639572 in words is "two million, six hundred thirty-nine thousand, five hundred seventy-two".