2790864080 has 20 divisors (see below), whose sum is σ = 6488759172. Its totient is φ = 1116345600.

The previous prime is 2790864073. The next prime is 2790864103. The reversal of 2790864080 is 804680972.

It can be written as a sum of positive squares in 2 ways, for example, as 590878864 + 2199985216 = 24308^2 + 46904^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 17442821 + ... + 17442980.

Almost surely, 2^2790864080 is an apocalyptic number.

2790864080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2790864080 is an abundant number, since it is smaller than the sum of its proper divisors (3697895092).

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

2790864080 is a wasteful number, since it uses less digits than its factorization.

2790864080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34885814 (or 34885808 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 2790864080 is about 52828.6293594676. The cubic root of 2790864080 is about 1407.9251342984.

The spelling of 2790864080 in words is "two billion, seven hundred ninety million, eight hundred sixty-four thousand, eighty".