427311288 has 80 divisors (see below), whose sum is σ = 1238193000. Its totient is φ = 137519424.

The previous prime is 427311257. The next prime is 427311323. The reversal of 427311288 is 882113724.

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 19 ways as a sum of consecutive naturals, for example, 7423 + ... + 30161.

Almost surely, 2^427311288 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 427311288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (619096500).

427311288 is an abundant number, since it is smaller than the sum of its proper divisors (810881712).

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

427311288 is a wasteful number, since it uses less digits than its factorization.

427311288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22786 (or 22773 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 427311288 is about 20671.5090885982. The cubic root of 427311288 is about 753.2077647672.

The spelling of 427311288 in words is "four hundred twenty-seven million, three hundred eleven thousand, two hundred eighty-eight".