427274220 has 96 divisors (see below), whose sum is σ = 1254113280. Its totient is φ = 108486400.

The previous prime is 427274207. The next prime is 427274257. The reversal of 427274220 is 22472724.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 370645 + ... + 371795.

It is an arithmetic number, because the mean of its divisors is an integer number (13063680).

Almost surely, 2^427274220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 427274220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (627056640).

427274220 is an abundant number, since it is smaller than the sum of its proper divisors (826839060).

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

427274220 is a wasteful number, since it uses less digits than its factorization.

427274220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455 (or 1453 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 30.

The square root of 427274220 is about 20670.6124727837. The cubic root of 427274220 is about 753.1859846164.

The spelling of 427274220 in words is "four hundred twenty-seven million, two hundred seventy-four thousand, two hundred twenty".