4644700040 has 128 divisors (see below), whose sum is σ = 11253116160. Its totient is φ = 1721094144.

The previous prime is 4644700037. The next prime is 4644700051. The reversal of 4644700040 is 400074464.

It is a junction number, because it is equal to n+sod(n) for n = 4644699976 and 4644700012.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5419292 + ... + 5420148.

It is an arithmetic number, because the mean of its divisors is an integer number (87914970).

Almost surely, 2^4644700040 is an apocalyptic number.

4644700040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4644700040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5626558080).

4644700040 is an abundant number, since it is smaller than the sum of its proper divisors (6608416120).

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

4644700040 is a wasteful number, since it uses less digits than its factorization.

4644700040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071 (or 1067 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 29.

The square root of 4644700040 is about 68152.0362131609. The cubic root of 4644700040 is about 1668.4731571589.

The spelling of 4644700040 in words is "four billion, six hundred forty-four million, seven hundred thousand, forty".