478454850 has 144 divisors (see below), whose sum is σ = 1360037952. Its totient is φ = 125012160.

The previous prime is 478454813. The next prime is 478454861. The reversal of 478454850 is 58454874.

It is a super-3 number, since 3×478454850³ (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 478454796 and 478454805.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 643579 + ... + 644321.

It is an arithmetic number, because the mean of its divisors is an integer number (9444708).

Almost surely, 2^478454850 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 478454850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (680018976).

478454850 is an abundant number, since it is smaller than the sum of its proper divisors (881583102).

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

478454850 is a wasteful number, since it uses less digits than its factorization.

478454850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823 (or 806 counting only the distinct ones).

The product of its (nonzero) digits is 716800, while the sum is 45.

The square root of 478454850 is about 21873.6108130322. The cubic root of 478454850 is about 782.1324782152.

The spelling of 478454850 in words is "four hundred seventy-eight million, four hundred fifty-four thousand, eight hundred fifty".