4921344432 has 160 divisors (see below), whose sum is σ = 15187123200. Its totient is φ = 1520923392.

The previous prime is 4921344427. The next prime is 4921344487. The reversal of 4921344432 is 2344431294.

4921344432 is a `hidden beast` number, since 4 + 9 + 213 + 4 + 4 + 432 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

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, 379398 + ... + 392154.

It is an arithmetic number, because the mean of its divisors is an integer number (94919520).

Almost surely, 2^4921344432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4921344432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7593561600).

4921344432 is an abundant number, since it is smaller than the sum of its proper divisors (10265778768).

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

4921344432 is a wasteful number, since it uses less digits than its factorization.

4921344432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12840 (or 12828 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

The square root of 4921344432 is about 70152.2945597648. The cubic root of 4921344432 is about 1700.9619045308.

The spelling of 4921344432 in words is "four billion, nine hundred twenty-one million, three hundred forty-four thousand, four hundred thirty-two".