2790389784 has 64 divisors (see below), whose sum is σ = 8585821440. Its totient is φ = 735926400.

The previous prime is 2790389783. The next prime is 2790389813. The reversal of 2790389784 is 4879830972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2790389783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 636642 + ... + 641009.

It is an arithmetic number, because the mean of its divisors is an integer number (134153460).

Almost surely, 2^2790389784 is an apocalyptic number.

2790389784 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2790389784 is an abundant number, since it is smaller than the sum of its proper divisors (5795431656).

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

2790389784 is a wasteful number, since it uses less digits than its factorization.

2790389784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277680 (or 1277676 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 57.

The square root of 2790389784 is about 52824.1401633761. The cubic root of 2790389784 is about 1407.8453727297.

The spelling of 2790389784 in words is "two billion, seven hundred ninety million, three hundred eighty-nine thousand, seven hundred eighty-four".