4578640830 has 160 divisors (see below), whose sum is σ = 12685787136. Its totient is φ = 1184331456.

The previous prime is 4578640819. The next prime is 4578640853. The reversal of 4578640830 is 380468754.

4578640830 is a `hidden beast` number, since 4 + 578 + 6 + 40 + 8 + 30 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 4834417 + ... + 4835363.

Almost surely, 2^4578640830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4578640830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6342893568).

4578640830 is an abundant number, since it is smaller than the sum of its proper divisors (8107146306).

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

4578640830 is a wasteful number, since it uses less digits than its factorization.

4578640830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140 (or 1131 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The square root of 4578640830 is about 67665.6547297076. The cubic root of 4578640830 is about 1660.5254094814.

The spelling of 4578640830 in words is "four billion, five hundred seventy-eight million, six hundred forty thousand, eight hundred thirty".