260623018 has 4 divisors (see below), whose sum is σ = 390934530. Its totient is φ = 130311508.

The previous prime is 260623009. The next prime is 260623081. The reversal of 260623018 is 810326062.

260623018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 260596449 + 26569 = 16143^2 + 163^2 .

It is a super-2 number, since 2×260623018² = 135848715022856648, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65155753 + ... + 65155756.

Almost surely, 2^260623018 is an apocalyptic number.

260623018 is a deficient number, since it is larger than the sum of its proper divisors (130311512).

260623018 is a wasteful number, since it uses less digits than its factorization.

260623018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130311511.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 260623018 is about 16143.8229053716. The cubic root of 260623018 is about 638.7598200346.

The spelling of 260623018 in words is "two hundred sixty million, six hundred twenty-three thousand, eighteen".