420794318 has 16 divisors (see below), whose sum is σ = 721732704. Its totient is φ = 180247680.

The previous prime is 420794317. The next prime is 420794323. The reversal of 420794318 is 813497024.

It is a super-2 number, since 2×420794318² = 354135716122170248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420794317) 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, 25346 + ... + 38522.

It is an arithmetic number, because the mean of its divisors is an integer number (45108294).

Almost surely, 2^420794318 is an apocalyptic number.

420794318 is a deficient number, since it is larger than the sum of its proper divisors (300938386).

420794318 is a wasteful number, since it uses less digits than its factorization.

420794318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15467.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 420794318 is about 20513.2717526971. The cubic root of 420794318 is about 749.3590482490.

The spelling of 420794318 in words is "four hundred twenty million, seven hundred ninety-four thousand, three hundred eighteen".