420022031 has 8 divisors (see below), whose sum is σ = 493452624. Its totient is φ = 352465920.

The previous prime is 420022019. The next prime is 420022049. The reversal of 420022031 is 130220024.

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-420022031 is a prime.

It is a super-2 number, since 2×420022031² = 352837013050729922, 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 = 420021997 and 420022015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420022831) 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, 1468466 + ... + 1468751.

It is an arithmetic number, because the mean of its divisors is an integer number (61681578).

Almost surely, 2^420022031 is an apocalyptic number.

420022031 is a deficient number, since it is larger than the sum of its proper divisors (73430593).

420022031 is a wasteful number, since it uses less digits than its factorization.

420022031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2937241.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 420022031 is about 20494.4390262334. The cubic root of 420022031 is about 748.9003327268.

Adding to 420022031 its reverse (130220024), we get a palindrome (550242055).

The spelling of 420022031 in words is "four hundred twenty million, twenty-two thousand, thirty-one".