427089920 has 56 divisors (see below), whose sum is σ = 1025051544. Its totient is φ = 170819584.

The previous prime is 427089919. The next prime is 427090003. The reversal of 427089920 is 29980724.

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, 35747 + ... + 46173.

Almost surely, 2^427089920 is an apocalyptic number.

427089920 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 427089920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (512525772).

427089920 is an abundant number, since it is smaller than the sum of its proper divisors (597961624).

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

427089920 is an equidigital number, since it uses as much as digits as its factorization.

427089920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10458 (or 10434 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 427089920 is about 20666.1539721352. The cubic root of 427089920 is about 753.0776762330.

The spelling of 427089920 in words is "four hundred twenty-seven million, eighty-nine thousand, nine hundred twenty".