427999216 has 60 divisors (see below), whose sum is σ = 864554040. Its totient is φ = 205180800.

The previous prime is 427999213. The next prime is 427999279. The reversal of 427999216 is 612999724.

It is a super-2 number, since 2×427999216² = 366366657793229312, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 427999216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427999213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4237566 + ... + 4237666.

It is an arithmetic number, because the mean of its divisors is an integer number (14409234).

Almost surely, 2^427999216 is an apocalyptic number.

It is an amenable number.

427999216 is an abundant number, since it is smaller than the sum of its proper divisors (436554824).

427999216 is a wasteful number, since it uses less digits than its factorization.

427999216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302 (or 229 counting only the distinct ones).

The product of its digits is 489888, while the sum is 49.

The square root of 427999216 is about 20688.1419175333. The cubic root of 427999216 is about 753.6117441894.

The spelling of 427999216 in words is "four hundred twenty-seven million, nine hundred ninety-nine thousand, two hundred sixteen".