2855390784 has 56 divisors (see below), whose sum is σ = 7614440448. Its totient is φ = 944294400.

The previous prime is 2855390761. The next prime is 2855390807. The reversal of 2855390784 is 4870935582.

It is an interprime number because it is at equal distance from previous prime (2855390761) and next prime (2855390807).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34167 + ... + 82934.

Almost surely, 2^2855390784 is an apocalyptic number.

2855390784 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2855390784 is an abundant number, since it is smaller than the sum of its proper divisors (4759049664).

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

2855390784 is a wasteful number, since it uses less digits than its factorization.

2855390784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117243 (or 117233 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 51.

The square root of 2855390784 is about 53435.8567256108. The cubic root of 2855390784 is about 1418.6933003429.

The spelling of 2855390784 in words is "two billion, eight hundred fifty-five million, three hundred ninety thousand, seven hundred eighty-four".