2909042046 has 128 divisors (see below), whose sum is σ = 6965637120. Its totient is φ = 898128000.

The previous prime is 2909042041. The next prime is 2909042053. The reversal of 2909042046 is 6402409092.

It is a super-2 number, since 2×2909042046² = 16925051250791732232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2909042046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2909042041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4149496 + ... + 4150196.

It is an arithmetic number, because the mean of its divisors is an integer number (54419040).

Almost surely, 2^2909042046 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2909042046, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3482818560).

2909042046 is an abundant number, since it is smaller than the sum of its proper divisors (4056595074).

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

2909042046 is a wasteful number, since it uses less digits than its factorization.

2909042046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847 (or 841 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 2909042046 is about 53935.5360221811. The cubic root of 2909042046 is about 1427.5237183611.

The spelling of 2909042046 in words is "two billion, nine hundred nine million, forty-two thousand, forty-six".