1400306313 has 8 divisors (see below), whose sum is σ = 2133800128. Its totient is φ = 800175024.

The previous prime is 1400306273. The next prime is 1400306359. The reversal of 1400306313 is 3136030041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1400306313 - 2⁶ = 1400306249 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 66681253 = 1400306313 / (1 + 4 + 0 + 0 + 3 + 0 + 6 + 3 + 1 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1400306313.

It is not an unprimeable number, because it can be changed into a prime (1400306113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33340606 + ... + 33340647.

It is an arithmetic number, because the mean of its divisors is an integer number (266725016).

Almost surely, 2^1400306313 is an apocalyptic number.

It is an amenable number.

1400306313 is a deficient number, since it is larger than the sum of its proper divisors (733493815).

1400306313 is an equidigital number, since it uses as much as digits as its factorization.

1400306313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66681263.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 1400306313 is about 37420.6669235063. Note that the first 3 decimals coincide. The cubic root of 1400306313 is about 1118.7705239808.

Adding to 1400306313 its reverse (3136030041), we get a palindrome (4536336354).

The spelling of 1400306313 in words is "one billion, four hundred million, three hundred six thousand, three hundred thirteen".