260045402 has 4 divisors (see below), whose sum is σ = 390068106. Its totient is φ = 130022700.

The previous prime is 260045393. The next prime is 260045437. The reversal of 260045402 is 204540062.

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., 230766481 + 29278921 = 15191^2 + 5411^2 .

It is a super-2 number, since 2×260045402² = 135247222202683208, 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, 65011349 + ... + 65011352.

Almost surely, 2^260045402 is an apocalyptic number.

260045402 is a deficient number, since it is larger than the sum of its proper divisors (130022704).

260045402 is a wasteful number, since it uses less digits than its factorization.

260045402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130022703.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 260045402 is about 16125.9232913964. The cubic root of 260045402 is about 638.2875788084.

Adding to 260045402 its reverse (204540062), we get a palindrome (464585464).

The spelling of 260045402 in words is "two hundred sixty million, forty-five thousand, four hundred two".