420040313 has 16 divisors (see below), whose sum is σ = 525090816. Its totient is φ = 326426640.

The previous prime is 420040303. The next prime is 420040333. The reversal of 420040313 is 313040024.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420040313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 420040291 and 420040300.

It is not an unprimeable number, because it can be changed into a prime (420040303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22370 + ... + 36612.

It is an arithmetic number, because the mean of its divisors is an integer number (32818176).

Almost surely, 2^420040313 is an apocalyptic number.

It is an amenable number.

420040313 is a deficient number, since it is larger than the sum of its proper divisors (105050503).

420040313 is a wasteful number, since it uses less digits than its factorization.

420040313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14644.

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

The square root of 420040313 is about 20494.8850448106. The cubic root of 420040313 is about 748.9111981865.

Adding to 420040313 its reverse (313040024), we get a palindrome (733080337).

The spelling of 420040313 in words is "four hundred twenty million, forty thousand, three hundred thirteen".