427026816 has 96 divisors (see below), whose sum is σ = 1274418600. Its totient is φ = 142331904.

The previous prime is 427026781. The next prime is 427026823. The reversal of 427026816 is 618620724.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24240 + ... + 37968.

Almost surely, 2^427026816 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 427026816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (637209300).

427026816 is an abundant number, since it is smaller than the sum of its proper divisors (847391784).

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

427026816 is an equidigital number, since it uses as much as digits as its factorization.

427026816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13758 (or 13734 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 427026816 is about 20664.6271681828. The cubic root of 427026816 is about 753.0405844699.

The spelling of 427026816 in words is "four hundred twenty-seven million, twenty-six thousand, eight hundred sixteen".