4431641652 has 48 divisors (see below), whose sum is σ = 11493518400. Its totient is φ = 1476689760.

The previous prime is 4431641629. The next prime is 4431641653. The reversal of 4431641652 is 2561461344.

4431641652 is a `hidden beast` number, since 4 + 4 + 3 + 1 + 641 + 6 + 5 + 2 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4431641653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 407299 + ... + 418037.

It is an arithmetic number, because the mean of its divisors is an integer number (239448300).

Almost surely, 2^4431641652 is an apocalyptic number.

It is an amenable number.

4431641652 is an abundant number, since it is smaller than the sum of its proper divisors (7061876748).

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

4431641652 is a wasteful number, since it uses less digits than its factorization.

4431641652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14573 (or 14565 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 4431641652 is about 66570.5764733940. The cubic root of 4431641652 is about 1642.5611444889.

The spelling of 4431641652 in words is "four billion, four hundred thirty-one million, six hundred forty-one thousand, six hundred fifty-two".