420465031 has 6 divisors (see below), whose sum is σ = 489112440. Its totient is φ = 360398556.

The previous prime is 420465013. The next prime is 420465061. The reversal of 420465031 is 130564024.

It is not a de Polignac number, because 420465031 - 2⁷ = 420464903 is a prime.

It is a super-2 number, since 2×420465031² = 353581684587661922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 420464987 and 420465005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420465061) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4290411 + ... + 4290508.

It is an arithmetic number, because the mean of its divisors is an integer number (81518740).

Almost surely, 2^420465031 is an apocalyptic number.

420465031 is a deficient number, since it is larger than the sum of its proper divisors (68647409).

420465031 is an equidigital number, since it uses as much as digits as its factorization.

420465031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8580933 (or 8580926 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 420465031 is about 20505.2439878193. The cubic root of 420465031 is about 749.1635302528.

The spelling of 420465031 in words is "four hundred twenty million, four hundred sixty-five thousand, thirty-one".