4321611840 has 672 divisors, whose sum is σ = 17746089984. Its totient is φ = 882524160.

The previous prime is 4321611829. The next prime is 4321611851. The reversal of 4321611840 is 481161234.

It is an interprime number because it is at equal distance from previous prime (4321611829) and next prime (4321611851).

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 4321611798 and 4321611807.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 22626145 + ... + 22626335.

It is an arithmetic number, because the mean of its divisors is an integer number (26407872).

Almost surely, 2^4321611840 is an apocalyptic number.

4321611840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4321611840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8873044992).

4321611840 is an abundant number, since it is smaller than the sum of its proper divisors (13424478144).

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

4321611840 is a wasteful number, since it uses less digits than its factorization.

4321611840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275 (or 258 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 4321611840 is about 65738.9674394115. The cubic root of 4321611840 is about 1628.8531006448.

The spelling of 4321611840 in words is "four billion, three hundred twenty-one million, six hundred eleven thousand, eight hundred forty".