2939315478 has 32 divisors (see below), whose sum is σ = 6430579200. Its totient is φ = 888267360.

The previous prime is 2939315459. The next prime is 2939315479. The reversal of 2939315478 is 8745139392.

2939315478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2939315478.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2939315479) 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, 36453 + ... + 84896.

It is an arithmetic number, because the mean of its divisors is an integer number (200955600).

Almost surely, 2^2939315478 is an apocalyptic number.

2939315478 is an abundant number, since it is smaller than the sum of its proper divisors (3491263722).

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

2939315478 is a wasteful number, since it uses less digits than its factorization.

2939315478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121732.

The product of its digits is 1632960, while the sum is 51.

The square root of 2939315478 is about 54215.4542358542. The cubic root of 2939315478 is about 1432.4585606706.

The spelling of 2939315478 in words is "two billion, nine hundred thirty-nine million, three hundred fifteen thousand, four hundred seventy-eight".