427638056 has 16 divisors (see below), whose sum is σ = 827687040. Its totient is φ = 206921520.

The previous prime is 427638047. The next prime is 427638059. The reversal of 427638056 is 650836724.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (427638059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 861926 + ... + 862421.

It is an arithmetic number, because the mean of its divisors is an integer number (51730440).

Almost surely, 2^427638056 is an apocalyptic number.

It is an amenable number.

427638056 is a deficient number, since it is larger than the sum of its proper divisors (400048984).

427638056 is a wasteful number, since it uses less digits than its factorization.

427638056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1724384 (or 1724380 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 41.

The square root of 427638056 is about 20679.4114036159. The cubic root of 427638056 is about 753.3997103041.

The spelling of 427638056 in words is "four hundred twenty-seven million, six hundred thirty-eight thousand, fifty-six".