427522720 has 96 divisors (see below), whose sum is σ = 1034208000. Its totient is φ = 166972416.

The previous prime is 427522687. The next prime is 427522759. The reversal of 427522720 is 27225724.

It is a super-2 number, since 2×427522720² = 365551352232396800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1883247 + ... + 1883473.

It is an arithmetic number, because the mean of its divisors is an integer number (10773000).

Almost surely, 2^427522720 is an apocalyptic number.

427522720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 427522720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (517104000).

427522720 is an abundant number, since it is smaller than the sum of its proper divisors (606685280).

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

427522720 is a wasteful number, since it uses less digits than its factorization.

427522720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470 (or 462 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 31.

The square root of 427522720 is about 20676.6225481823. The cubic root of 427522720 is about 753.3319723960.

The spelling of 427522720 in words is "four hundred twenty-seven million, five hundred twenty-two thousand, seven hundred twenty".