4631664340 has 24 divisors (see below), whose sum is σ = 9812575080. Its totient is φ = 1836269568.

The previous prime is 4631664319. The next prime is 4631664383. The reversal of 4631664340 is 434661364.

It can be written as a sum of positive squares in 4 ways, for example, as 23155344 + 4608508996 = 4812^2 + 67886^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4631664340.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1022445 + ... + 1026964.

It is an arithmetic number, because the mean of its divisors is an integer number (408857295).

Almost surely, 2^4631664340 is an apocalyptic number.

It is an amenable number.

4631664340 is an abundant number, since it is smaller than the sum of its proper divisors (5180910740).

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

4631664340 is a wasteful number, since it uses less digits than its factorization.

4631664340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2049531 (or 2049529 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 37.

The square root of 4631664340 is about 68056.3321080412. The cubic root of 4631664340 is about 1666.9107961498.

The spelling of 4631664340 in words is "four billion, six hundred thirty-one million, six hundred sixty-four thousand, three hundred forty".