427121120 has 24 divisors (see below), whose sum is σ = 1009074024. Its totient is φ = 170848384.

The previous prime is 427121113. The next prime is 427121147. The reversal of 427121120 is 21121724.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 427121092 and 427121101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1334594 + ... + 1334913.

It is an arithmetic number, because the mean of its divisors is an integer number (42044751).

Almost surely, 2^427121120 is an apocalyptic number.

427121120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

427121120 is an abundant number, since it is smaller than the sum of its proper divisors (581952904).

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

427121120 is a wasteful number, since it uses less digits than its factorization.

427121120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2669522 (or 2669514 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 427121120 is about 20666.9088157857. The cubic root of 427121120 is about 753.0960138635.

Adding to 427121120 its reverse (21121724), we get a palindrome (448242844).

The spelling of 427121120 in words is "four hundred twenty-seven million, one hundred twenty-one thousand, one hundred twenty".