2644392 has 16 divisors (see below), whose sum is σ = 6611040. Its totient is φ = 881456.

The previous prime is 2644387. The next prime is 2644399. The reversal of 2644392 is 2934462.

It is a d-powerful number, because it can be written as 2⁵ + 6³ + 4 + 4¹⁰ + 3¹³ + 9³ + 2⁹ .

It is not an unprimeable number, because it can be changed into a prime (2644399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55068 + ... + 55115.

It is an arithmetic number, because the mean of its divisors is an integer number (413190).

2^2644392 is an apocalyptic number.

It is an amenable number.

2644392 is an abundant number, since it is smaller than the sum of its proper divisors (3966648).

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

2644392 is a wasteful number, since it uses less digits than its factorization.

2644392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110192 (or 110188 counting only the distinct ones).

The product of its digits is 10368, while the sum is 30.

The square root of 2644392 is about 1626.1586638456. The cubic root of 2644392 is about 138.2850650133.

It can be divided in two parts, 264 and 4392, that added together give a triangular number (4656 = T₉₆).

The spelling of 2644392 in words is "two million, six hundred forty-four thousand, three hundred ninety-two".