427729216 has 28 divisors (see below), whose sum is σ = 893450080. Its totient is φ = 202608000.

The previous prime is 427729199. The next prime is 427729217. The reversal of 427729216 is 612927724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427729217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174660 + ... + 177091.

Almost surely, 2^427729216 is an apocalyptic number.

It is an amenable number.

427729216 is an abundant number, since it is smaller than the sum of its proper divisors (465720864).

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

427729216 is a wasteful number, since it uses less digits than its factorization.

427729216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351782 (or 351772 counting only the distinct ones).

The product of its digits is 84672, while the sum is 40.

The square root of 427729216 is about 20681.6154107942. The cubic root of 427729216 is about 753.4532408050.

The spelling of 427729216 in words is "four hundred twenty-seven million, seven hundred twenty-nine thousand, two hundred sixteen".