2452644 has 36 divisors (see below), whose sum is σ = 6249516. Its totient is φ = 811008.

The previous prime is 2452633. The next prime is 2452649. The reversal of 2452644 is 4462542.

2452644 = 2² + 3² + ... + 194².

It can be written as a sum of positive squares in 2 ways, for example, as 788544 + 1664100 = 888^2 + 1290^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2452649) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6772 + ... + 7124.

2^2452644 is an apocalyptic number.

It is an amenable number.

2452644 is an abundant number, since it is smaller than the sum of its proper divisors (3796872).

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

2452644 is a wasteful number, since it uses less digits than its factorization.

2452644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556 (or 551 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 2452644 is about 1566.0919513234. The cubic root of 2452644 is about 134.8584524623.

The spelling of 2452644 in words is "two million, four hundred fifty-two thousand, six hundred forty-four".