2560470638 has 16 divisors (see below), whose sum is σ = 4199828400. Its totient is φ = 1161081600.

The previous prime is 2560470617. The next prime is 2560470677. The reversal of 2560470638 is 8360740652.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2560470595 and 2560470604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128963 + ... + 147486.

It is an arithmetic number, because the mean of its divisors is an integer number (262489275).

Almost surely, 2^2560470638 is an apocalyptic number.

2560470638 is a deficient number, since it is larger than the sum of its proper divisors (1639357762).

2560470638 is a wasteful number, since it uses less digits than its factorization.

2560470638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276883.

The product of its (nonzero) digits is 241920, while the sum is 41.

The square root of 2560470638 is about 50601.0932490594. The cubic root of 2560470638 is about 1368.0645834192.

The spelling of 2560470638 in words is "two billion, five hundred sixty million, four hundred seventy thousand, six hundred thirty-eight".