2648623444 has 12 divisors (see below), whose sum is σ = 4637274964. Its totient is φ = 1323687744.

The previous prime is 2648623421. The next prime is 2648623469. The reversal of 2648623444 is 4443268462.

It can be written as a sum of positive squares in 2 ways, for example, as 87048900 + 2561574544 = 9330^2 + 50612^2 .

It is a super-2 number, since 2×2648623444² = 14030412296212842272, which contains 22 as substring.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2648623444.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146379 + ... + 163474.

Almost surely, 2^2648623444 is an apocalyptic number.

It is an amenable number.

2648623444 is a deficient number, since it is larger than the sum of its proper divisors (1988651520).

2648623444 is a wasteful number, since it uses less digits than its factorization.

2648623444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311994 (or 311992 counting only the distinct ones).

The product of its digits is 884736, while the sum is 43.

The square root of 2648623444 is about 51464.7786743516. The cubic root of 2648623444 is about 1383.5878500611.

The spelling of 2648623444 in words is "two billion, six hundred forty-eight million, six hundred twenty-three thousand, four hundred forty-four".