2402644 has 24 divisors (see below), whose sum is σ = 4513320. Its totient is φ = 1115136.

The previous prime is 2402639. The next prime is 2402651. The reversal of 2402644 is 4462042.

It can be written as a sum of positive squares in 4 ways, for example, as 476100 + 1926544 = 690^2 + 1388^2 .

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, 5854 + ... + 6250.

It is an arithmetic number, because the mean of its divisors is an integer number (188055).

2^2402644 is an apocalyptic number.

It is an amenable number.

2402644 is a deficient number, since it is larger than the sum of its proper divisors (2110676).

2402644 is a wasteful number, since it uses less digits than its factorization.

2402644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507 (or 505 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 2402644 is about 1550.0464509169. The cubic root of 2402644 is about 133.9357381037.

Adding to 2402644 its reverse (4462042), we get a palindrome (6864686).

The spelling of 2402644 in words is "two million, four hundred two thousand, six hundred forty-four".