478393782 has 16 divisors (see below), whose sum is σ = 958355760. Its totient is φ = 159203232.

The previous prime is 478393739. The next prime is 478393793. The reversal of 478393782 is 287393874.

It is a super-2 number, since 2×478393782² = 457721221312527048, which contains 22 as substring.

It is a congruent number.

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, 61357 + ... + 68712.

It is an arithmetic number, because the mean of its divisors is an integer number (59897235).

Almost surely, 2^478393782 is an apocalyptic number.

478393782 is an abundant number, since it is smaller than the sum of its proper divisors (479961978).

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

478393782 is a wasteful number, since it uses less digits than its factorization.

478393782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130687.

The product of its digits is 2032128, while the sum is 51.

The square root of 478393782 is about 21872.2148398373. The cubic root of 478393782 is about 782.0992007468.

The spelling of 478393782 in words is "four hundred seventy-eight million, three hundred ninety-three thousand, seven hundred eighty-two".