4644142008 has 64 divisors (see below), whose sum is σ = 13410904320. Its totient is φ = 1324531200.

The previous prime is 4644142007. The next prime is 4644142043. The reversal of 4644142008 is 8002414464.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a self number, because there is not a number n which added to its sum of digits gives 4644142008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4644142007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 512908 + ... + 521883.

It is an arithmetic number, because the mean of its divisors is an integer number (209545380).

Almost surely, 2^4644142008 is an apocalyptic number.

It is an amenable number.

4644142008 is an abundant number, since it is smaller than the sum of its proper divisors (8766762312).

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

4644142008 is a wasteful number, since it uses less digits than its factorization.

4644142008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034828 (or 1034824 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 33.

The square root of 4644142008 is about 68147.9420672407. The cubic root of 4644142008 is about 1668.4063355706.

The spelling of 4644142008 in words is "four billion, six hundred forty-four million, one hundred forty-two thousand, eight".