478261740 has 48 divisors (see below), whose sum is σ = 1460874240. Its totient is φ = 115942080.

The previous prime is 478261717. The next prime is 478261789. The reversal of 478261740 is 47162874.

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, 361660 + ... + 362979.

It is an arithmetic number, because the mean of its divisors is an integer number (30434880).

Almost surely, 2^478261740 is an apocalyptic number.

It is an amenable number.

478261740 is an abundant number, since it is smaller than the sum of its proper divisors (982612500).

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

478261740 is a wasteful number, since it uses less digits than its factorization.

478261740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724662 (or 724660 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 39.

The square root of 478261740 is about 21869.1961443488. The cubic root of 478261740 is about 782.0272381021.

The spelling of 478261740 in words is "four hundred seventy-eight million, two hundred sixty-one thousand, seven hundred forty".