2780393316 has 48 divisors (see below), whose sum is σ = 6874249536. Its totient is φ = 871640064.

The previous prime is 2780393293. The next prime is 2780393323. The reversal of 2780393316 is 6133930872.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 327720 + ... + 336096.

It is an arithmetic number, because the mean of its divisors is an integer number (143213532).

Almost surely, 2^2780393316 is an apocalyptic number.

It is an amenable number.

2780393316 is an abundant number, since it is smaller than the sum of its proper divisors (4093856220).

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

2780393316 is a wasteful number, since it uses less digits than its factorization.

2780393316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10028 (or 10026 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 2780393316 is about 52729.4350055071. The cubic root of 2780393316 is about 1406.1621765045.

The spelling of 2780393316 in words is "two billion, seven hundred eighty million, three hundred ninety-three thousand, three hundred sixteen".