30400313 has 4 divisors (see below), whose sum is σ = 30412020. Its totient is φ = 30388608.

The previous prime is 30400303. The next prime is 30400333. The reversal of 30400313 is 31300403.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 7856809 + 22543504 = 2803^2 + 4748^2 .

It is a cyclic number.

It is not a de Polignac number, because 30400313 - 2⁴ = 30400297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30400303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20 + ... + 7797.

It is an arithmetic number, because the mean of its divisors is an integer number (7603005).

Almost surely, 2^30400313 is an apocalyptic number.

It is an amenable number.

30400313 is a deficient number, since it is larger than the sum of its proper divisors (11707).

30400313 is an equidigital number, since it uses as much as digits as its factorization.

30400313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11706.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 30400313 is about 5513.6478850213. The cubic root of 30400313 is about 312.0992212642.

Adding to 30400313 its reverse (31300403), we get a palindrome (61700716).

The spelling of 30400313 in words is "thirty million, four hundred thousand, three hundred thirteen".