260650138 has 8 divisors (see below), whose sum is σ = 446828832. Its totient is φ = 111707196.

The previous prime is 260650127. The next prime is 260650153. The reversal of 260650138 is 831056062.

260650138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 9308920 + ... + 9308947.

It is an arithmetic number, because the mean of its divisors is an integer number (55853604).

Almost surely, 2^260650138 is an apocalyptic number.

260650138 is a deficient number, since it is larger than the sum of its proper divisors (186178694).

260650138 is a wasteful number, since it uses less digits than its factorization.

260650138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18617876.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 260650138 is about 16144.6628332709. The cubic root of 260650138 is about 638.7819753627.

The spelling of 260650138 in words is "two hundred sixty million, six hundred fifty thousand, one hundred thirty-eight".