2909144040 has 128 divisors (see below), whose sum is σ = 10080961920. Its totient is φ = 663756800.

The previous prime is 2909144033. The next prime is 2909144081. The reversal of 2909144040 is 404419092.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 2909143992 and 2909144010.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42381 + ... + 87260.

It is an arithmetic number, because the mean of its divisors is an integer number (78757515).

Almost surely, 2^2909144040 is an apocalyptic number.

2909144040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2909144040 is an abundant number, since it is smaller than the sum of its proper divisors (7171817880).

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

2909144040 is a wasteful number, since it uses less digits than its factorization.

2909144040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129683 (or 129679 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 2909144040 is about 53936.4815315200. The cubic root of 2909144040 is about 1427.5404016484.

The spelling of 2909144040 in words is "two billion, nine hundred nine million, one hundred forty-four thousand, forty".