478705740 has 24 divisors (see below), whose sum is σ = 1340376240. Its totient is φ = 127654848.

The previous prime is 478705729. The next prime is 478705753. The reversal of 478705740 is 47507874.

It is a junction number, because it is equal to n+sod(n) for n = 478705692 and 478705701.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3989155 + ... + 3989274.

It is an arithmetic number, because the mean of its divisors is an integer number (55849010).

Almost surely, 2^478705740 is an apocalyptic number.

It is an amenable number.

478705740 is an abundant number, since it is smaller than the sum of its proper divisors (861670500).

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

478705740 is a wasteful number, since it uses less digits than its factorization.

478705740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7978441 (or 7978439 counting only the distinct ones).

The product of its (nonzero) digits is 219520, while the sum is 42.

The square root of 478705740 is about 21879.3450541830. The cubic root of 478705740 is about 782.2691646954.

The spelling of 478705740 in words is "four hundred seventy-eight million, seven hundred five thousand, seven hundred forty".