260390722 has 4 divisors (see below), whose sum is σ = 390586086. Its totient is φ = 130195360.

The previous prime is 260390701. The next prime is 260390723. The reversal of 260390722 is 227093062.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 181198521 + 79192201 = 13461^2 + 8899^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (260390723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65097679 + ... + 65097682.

Almost surely, 2^260390722 is an apocalyptic number.

260390722 is a deficient number, since it is larger than the sum of its proper divisors (130195364).

260390722 is a wasteful number, since it uses less digits than its factorization.

260390722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130195363.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 260390722 is about 16136.6267230794. The cubic root of 260390722 is about 638.5699858713.

The spelling of 260390722 in words is "two hundred sixty million, three hundred ninety thousand, seven hundred twenty-two".