420031120 has 40 divisors (see below), whose sum is σ = 977437440. Its totient is φ = 167863680.

The previous prime is 420031109. The next prime is 420031153. The reversal of 420031120 is 21130024.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×420031120² = 352852283536908800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 420031120.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153121 + ... + 155839.

It is an arithmetic number, because the mean of its divisors is an integer number (24435936).

Almost surely, 2^420031120 is an apocalyptic number.

420031120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

420031120 is an abundant number, since it is smaller than the sum of its proper divisors (557406320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420031120 is a wasteful number, since it uses less digits than its factorization.

420031120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4663 (or 4657 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 420031120 is about 20494.6607681123. The cubic root of 420031120 is about 748.9057345911.

Adding to 420031120 its reverse (21130024), we get a palindrome (441161144).

The spelling of 420031120 in words is "four hundred twenty million, thirty-one thousand, one hundred twenty".