2909038944 has 48 divisors (see below), whose sum is σ = 8727118848. Its totient is φ = 831153792.

The previous prime is 2909038903. The next prime is 2909038949. The reversal of 2909038944 is 4498309092.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 2909038893 and 2909038902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2909038949) 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, 2163792 + ... + 2165135.

It is an arithmetic number, because the mean of its divisors is an integer number (181814976).

Almost surely, 2^2909038944 is an apocalyptic number.

2909038944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2909038944 is an abundant number, since it is smaller than the sum of its proper divisors (5818079904).

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

2909038944 is a wasteful number, since it uses less digits than its factorization.

2909038944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4328947 (or 4328939 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 48.

The square root of 2909038944 is about 53935.5072656223. The cubic root of 2909038944 is about 1427.5232109570.

The spelling of 2909038944 in words is "two billion, nine hundred nine million, thirty-eight thousand, nine hundred forty-four".