4321130640 has 80 divisors (see below), whose sum is σ = 13409409600. Its totient is φ = 1151105536.

The previous prime is 4321130623. The next prime is 4321130657. The reversal of 4321130640 is 460311234.

It is an interprime number because it is at equal distance from previous prime (4321130623) and next prime (4321130657).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 4321130640.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235726 + ... + 253394.

It is an arithmetic number, because the mean of its divisors is an integer number (167617620).

Almost surely, 2^4321130640 is an apocalyptic number.

4321130640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4321130640 is an abundant number, since it is smaller than the sum of its proper divisors (9088278960).

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

4321130640 is a wasteful number, since it uses less digits than its factorization.

4321130640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18704 (or 18698 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 4321130640 is about 65735.3074078155. The cubic root of 4321130640 is about 1628.7926422453.

Adding to 4321130640 its reverse (460311234), we get a palindrome (4781441874).

The spelling of 4321130640 in words is "four billion, three hundred twenty-one million, one hundred thirty thousand, six hundred forty".