260253138 has 16 divisors (see below), whose sum is σ = 521287776. Its totient is φ = 86620800.

The previous prime is 260253131. The next prime is 260253143. The reversal of 260253138 is 831352062.

260253138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (260253131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28188 + ... + 36263.

It is an arithmetic number, because the mean of its divisors is an integer number (32580486).

Almost surely, 2^260253138 is an apocalyptic number.

260253138 is an abundant number, since it is smaller than the sum of its proper divisors (261034638).

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

260253138 is a wasteful number, since it uses less digits than its factorization.

260253138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65129.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 260253138 is about 16132.3630631101. The cubic root of 260253138 is about 638.4574978756.

The spelling of 260253138 in words is "two hundred sixty million, two hundred fifty-three thousand, one hundred thirty-eight".