2391271460 has 12 divisors (see below), whose sum is σ = 5021670108. Its totient is φ = 956508576.

The previous prime is 2391271447. The next prime is 2391271523. The reversal of 2391271460 is 641721932.

It can be written as a sum of positive squares in 2 ways, for example, as 314281984 + 2076989476 = 17728^2 + 45574^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2391271460.

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, 59781767 + ... + 59781806.

It is an arithmetic number, because the mean of its divisors is an integer number (418472509).

Almost surely, 2^2391271460 is an apocalyptic number.

2391271460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2391271460 is an abundant number, since it is smaller than the sum of its proper divisors (2630398648).

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

2391271460 is a wasteful number, since it uses less digits than its factorization.

2391271460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119563582 (or 119563580 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 2391271460 is about 48900.6284213199. The cubic root of 2391271460 is about 1337.2408250835.

The spelling of 2391271460 in words is "two billion, three hundred ninety-one million, two hundred seventy-one thousand, four hundred sixty".