2805345156 has 12 divisors (see below), whose sum is σ = 6545805392. Its totient is φ = 935115048.

The previous prime is 2805345149. The next prime is 2805345187. The reversal of 2805345156 is 6515435082.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×2805345156² = 15739922888585328672, which contains 22 as substring.

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, 116889370 + ... + 116889393.

Almost surely, 2^2805345156 is an apocalyptic number.

It is an amenable number.

2805345156 is an abundant number, since it is smaller than the sum of its proper divisors (3740460236).

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

2805345156 is a wasteful number, since it uses less digits than its factorization.

2805345156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233778770 (or 233778768 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 39.

The square root of 2805345156 is about 52965.5091167828. The cubic root of 2805345156 is about 1410.3560551440.

The spelling of 2805345156 in words is "two billion, eight hundred five million, three hundred forty-five thousand, one hundred fifty-six".