260020403 has 4 divisors (see below), whose sum is σ = 265552800. Its totient is φ = 254488008.

The previous prime is 260020393. The next prime is 260020421. The reversal of 260020403 is 304020062.

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

It is a cyclic number.

It is not a de Polignac number, because 260020403 - 2⁸ = 260020147 is a prime.

It is a super-2 number, since 2×260020403² = 135221219952564818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (260020303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2766128 + ... + 2766221.

It is an arithmetic number, because the mean of its divisors is an integer number (66388200).

Almost surely, 2^260020403 is an apocalyptic number.

260020403 is a deficient number, since it is larger than the sum of its proper divisors (5532397).

260020403 is an equidigital number, since it uses as much as digits as its factorization.

260020403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5532396.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 260020403 is about 16125.1481543581. The cubic root of 260020403 is about 638.2671246077.

Adding to 260020403 its reverse (304020062), we get a palindrome (564040465).

The spelling of 260020403 in words is "two hundred sixty million, twenty thousand, four hundred three".