2640430254 has 32 divisors (see below), whose sum is σ = 6583931136. Its totient is φ = 685825920.

The previous prime is 2640430241. The next prime is 2640430277. The reversal of 2640430254 is 4520340462.

2640430254 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent 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, 2857147 + ... + 2858070.

It is an arithmetic number, because the mean of its divisors is an integer number (205747848).

Almost surely, 2^2640430254 is an apocalyptic number.

2640430254 is an abundant number, since it is smaller than the sum of its proper divisors (3943500882).

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

2640430254 is a wasteful number, since it uses less digits than its factorization.

2640430254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5715240.

The product of its (nonzero) digits is 23040, while the sum is 30.

The square root of 2640430254 is about 51385.1170476433. The cubic root of 2640430254 is about 1382.1597236722.

The spelling of 2640430254 in words is "two billion, six hundred forty million, four hundred thirty thousand, two hundred fifty-four".