420345313 has 8 divisors (see below), whose sum is σ = 425174400. Its totient is φ = 415542288.

The previous prime is 420345307. The next prime is 420345377. The reversal of 420345313 is 313543024.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420345313 is a prime.

It is a super-2 number, since 2×420345313² = 353380364322135938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420345613) 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, 26895 + ... + 39547.

It is an arithmetic number, because the mean of its divisors is an integer number (53146800).

Almost surely, 2^420345313 is an apocalyptic number.

It is an amenable number.

420345313 is a deficient number, since it is larger than the sum of its proper divisors (4829087).

420345313 is a wasteful number, since it uses less digits than its factorization.

420345313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13031.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 420345313 is about 20502.3245755207. The cubic root of 420345313 is about 749.0924209916.

Adding to 420345313 its reverse (313543024), we get a palindrome (733888337).

The spelling of 420345313 in words is "four hundred twenty million, three hundred forty-five thousand, three hundred thirteen".