478644106 has 4 divisors (see below), whose sum is σ = 717966162. Its totient is φ = 239322052.

The previous prime is 478644091. The next prime is 478644107. The reversal of 478644106 is 601446874.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 338008225 + 140635881 = 18385^2 + 11859^2 .

It is not an unprimeable number, because it can be changed into a prime (478644107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119661025 + ... + 119661028.

Almost surely, 2^478644106 is an apocalyptic number.

478644106 is a deficient number, since it is larger than the sum of its proper divisors (239322056).

478644106 is a wasteful number, since it uses less digits than its factorization.

478644106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239322055.

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 478644106 is about 21877.9365114720. The cubic root of 478644106 is about 782.2355905231.

The spelling of 478644106 in words is "four hundred seventy-eight million, six hundred forty-four thousand, one hundred six".