260783138 has 32 divisors (see below), whose sum is σ = 504524160. Its totient is φ = 98098560.

The previous prime is 260783101. The next prime is 260783147. The reversal of 260783138 is 831387062.

It is a happy number.

260783138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 24731 + ... + 33662.

It is an arithmetic number, because the mean of its divisors is an integer number (15766380).

Almost surely, 2^260783138 is an apocalyptic number.

260783138 is a deficient number, since it is larger than the sum of its proper divisors (243741022).

260783138 is a wasteful number, since it uses less digits than its factorization.

260783138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58442.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 260783138 is about 16148.7813162480. The cubic root of 260783138 is about 638.8906057247.

The spelling of 260783138 in words is "two hundred sixty million, seven hundred eighty-three thousand, one hundred thirty-eight".