2147440680 has 1024 divisors, whose sum is σ = 9953280000. Its totient is φ = 406425600.

The previous prime is 2147440643. The next prime is 2147440699. The reversal of 2147440680 is 860447412.

It is a super-2 number, since 2×2147440680² = 9223002948237724800, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 69272265 + ... + 69272295.

It is an arithmetic number, because the mean of its divisors is an integer number (9720000).

Almost surely, 2^2147440680 is an apocalyptic number.

2147440680 is a gapful number since it is divisible by the number (20) 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 2147440680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4976640000).

2147440680 is an abundant number, since it is smaller than the sum of its proper divisors (7805839320).

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

2147440680 is a wasteful number, since it uses less digits than its factorization.

2147440680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 2147440680 is about 46340.4864022811. The cubic root of 2147440680 is about 1290.1505503038.

The spelling of 2147440680 in words is "two billion, one hundred forty-seven million, four hundred forty thousand, six hundred eighty".