2825399644 has 24 divisors (see below), whose sum is σ = 5107601408. Its totient is φ = 1366150320.

The previous prime is 2825399641. The next prime is 2825399663. The reversal of 2825399644 is 4469935282.

It is a junction number, because it is equal to n+sod(n) for n = 2825399591 and 2825399600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2825399641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183949 + ... + 198715.

Almost surely, 2^2825399644 is an apocalyptic number.

It is an amenable number.

2825399644 is a deficient number, since it is larger than the sum of its proper divisors (2282201764).

2825399644 is a wasteful number, since it uses less digits than its factorization.

2825399644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16345 (or 16343 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 52.

The square root of 2825399644 is about 53154.4884652275. The cubic root of 2825399644 is about 1413.7088021114.

The spelling of 2825399644 in words is "two billion, eight hundred twenty-five million, three hundred ninety-nine thousand, six hundred forty-four".