2279626644 has 12 divisors (see below), whose sum is σ = 5319128864. Its totient is φ = 759875544.

The previous prime is 2279626621. The next prime is 2279626649. The reversal of 2279626644 is 4466269722.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 2279626593 and 2279626602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2279626649) 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, 94984432 + ... + 94984455.

Almost surely, 2^2279626644 is an apocalyptic number.

It is an amenable number.

2279626644 is an abundant number, since it is smaller than the sum of its proper divisors (3039502220).

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

2279626644 is a wasteful number, since it uses less digits than its factorization.

2279626644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189968894 (or 189968892 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 48.

The square root of 2279626644 is about 47745.4358446962. The cubic root of 2279626644 is about 1316.0970270876.

The spelling of 2279626644 in words is "two billion, two hundred seventy-nine million, six hundred twenty-six thousand, six hundred forty-four".