478671236 has 6 divisors (see below), whose sum is σ = 837674670. Its totient is φ = 239335616.

The previous prime is 478671229. The next prime is 478671253. The reversal of 478671236 is 632176874.

It can be written as a sum of positive squares in only one way, i.e., 404814400 + 73856836 = 20120^2 + 8594^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59833901 + ... + 59833908.

It is an arithmetic number, because the mean of its divisors is an integer number (139612445).

Almost surely, 2^478671236 is an apocalyptic number.

It is an amenable number.

478671236 is a deficient number, since it is larger than the sum of its proper divisors (359003434).

478671236 is a wasteful number, since it uses less digits than its factorization.

478671236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119667813 (or 119667811 counting only the distinct ones).

The product of its digits is 338688, while the sum is 44.

The square root of 478671236 is about 21878.5565337387. The cubic root of 478671236 is about 782.2503695279.

The spelling of 478671236 in words is "four hundred seventy-eight million, six hundred seventy-one thousand, two hundred thirty-six".