427527918 has 48 divisors (see below), whose sum is σ = 961225200. Its totient is φ = 137168640.

The previous prime is 427527901. The next prime is 427527923. The reversal of 427527918 is 819725724.

It is a happy number.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 196758 + ... + 198918.

It is an arithmetic number, because the mean of its divisors is an integer number (20025525).

Almost surely, 2^427527918 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 427527918, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (480612600).

427527918 is an abundant number, since it is smaller than the sum of its proper divisors (533697282).

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

427527918 is a wasteful number, since it uses less digits than its factorization.

427527918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2577 (or 2574 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 427527918 is about 20676.7482453117. The cubic root of 427527918 is about 753.3350254920.

The spelling of 427527918 in words is "four hundred twenty-seven million, five hundred twenty-seven thousand, nine hundred eighteen".