427822464 has 64 divisors (see below), whose sum is σ = 1139544000. Its totient is φ = 142213632.

The previous prime is 427822441. The next prime is 427822481. The reversal of 427822464 is 464228724.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

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, 159567 + ... + 162225.

It is an arithmetic number, because the mean of its divisors is an integer number (17805375).

Almost surely, 2^427822464 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 427822464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (569772000).

427822464 is an abundant number, since it is smaller than the sum of its proper divisors (711721536).

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

427822464 is a wasteful number, since it uses less digits than its factorization.

427822464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3095 (or 3083 counting only the distinct ones).

The product of its digits is 172032, while the sum is 39.

The square root of 427822464 is about 20683.8696572958. The cubic root of 427822464 is about 753.5079895418.

The spelling of 427822464 in words is "four hundred twenty-seven million, eight hundred twenty-two thousand, four hundred sixty-four".