260278274 has 4 divisors (see below), whose sum is σ = 390417414. Its totient is φ = 130139136.

The previous prime is 260278259. The next prime is 260278297. The reversal of 260278274 is 472872062.

It is a happy number.

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., 211906249 + 48372025 = 14557^2 + 6955^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65069567 + ... + 65069570.

Almost surely, 2^260278274 is an apocalyptic number.

260278274 is a deficient number, since it is larger than the sum of its proper divisors (130139140).

260278274 is a wasteful number, since it uses less digits than its factorization.

260278274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130139139.

The product of its (nonzero) digits is 75264, while the sum is 38.

The square root of 260278274 is about 16133.1420994176. The cubic root of 260278274 is about 638.4780519038.

The spelling of 260278274 in words is "two hundred sixty million, two hundred seventy-eight thousand, two hundred seventy-four".