2913621844 has 24 divisors (see below), whose sum is σ = 5907073088. Its totient is φ = 1231588800.

The previous prime is 2913621787. The next prime is 2913621863. The reversal of 2913621844 is 4481263192.

It is a junction number, because it is equal to n+sod(n) for n = 2913621797 and 2913621806.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 710682 + ... + 714769.

Almost surely, 2^2913621844 is an apocalyptic number.

It is an amenable number.

2913621844 is an abundant number, since it is smaller than the sum of its proper divisors (2993451244).

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

2913621844 is a wasteful number, since it uses less digits than its factorization.

2913621844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1425535 (or 1425533 counting only the distinct ones).

The product of its digits is 82944, while the sum is 40.

The square root of 2913621844 is about 53977.9755455871. The cubic root of 2913621844 is about 1428.2724576701.

The spelling of 2913621844 in words is "two billion, nine hundred thirteen million, six hundred twenty-one thousand, eight hundred forty-four".