1306426260 has 24 divisors (see below), whose sum is σ = 3657993696. Its totient is φ = 348380320.

The previous prime is 1306426193. The next prime is 1306426271. The reversal of 1306426260 is 626246031.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 10886826 + ... + 10886945.

It is an arithmetic number, because the mean of its divisors is an integer number (152416404).

Almost surely, 2^1306426260 is an apocalyptic number.

1306426260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1306426260 is an abundant number, since it is smaller than the sum of its proper divisors (2351567436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1306426260 is a wasteful number, since it uses less digits than its factorization.

1306426260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21773783 (or 21773781 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 1306426260 is about 36144.5190865780. The cubic root of 1306426260 is about 1093.1882803385.

The spelling of 1306426260 in words is "one billion, three hundred six million, four hundred twenty-six thousand, two hundred sixty".