478378290 has 32 divisors (see below), whose sum is σ = 1236424896. Its totient is φ = 117754560.

The previous prime is 478378253. The next prime is 478378301. The reversal of 478378290 is 92873874.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 612916 + ... + 613695.

It is an arithmetic number, because the mean of its divisors is an integer number (38638278).

Almost surely, 2^478378290 is an apocalyptic number.

478378290 is an abundant number, since it is smaller than the sum of its proper divisors (758046606).

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

478378290 is a wasteful number, since it uses less digits than its factorization.

478378290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226634.

The product of its (nonzero) digits is 677376, while the sum is 48.

The square root of 478378290 is about 21871.8606890223. The cubic root of 478378290 is about 782.0907583213.

The spelling of 478378290 in words is "four hundred seventy-eight million, three hundred seventy-eight thousand, two hundred ninety".