2471867840 has 112 divisors (see below), whose sum is σ = 6428963520. Its totient is φ = 899727360.

The previous prime is 2471867821. The next prime is 2471867869. The reversal of 2471867840 is 487681742.

It is a super-2 number, since 2×2471867840² = 12220261236852531200, which contains 22 as substring.

It is a congruent number.

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, 291176 + ... + 299544.

It is an arithmetic number, because the mean of its divisors is an integer number (57401460).

Almost surely, 2^2471867840 is an apocalyptic number.

2471867840 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 2471867840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3214481760).

2471867840 is an abundant number, since it is smaller than the sum of its proper divisors (3957095680).

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

2471867840 is a wasteful number, since it uses less digits than its factorization.

2471867840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8470 (or 8460 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 47.

The square root of 2471867840 is about 49717.8824971458. The cubic root of 2471867840 is about 1352.0987638365.

The spelling of 2471867840 in words is "two billion, four hundred seventy-one million, eight hundred sixty-seven thousand, eight hundred forty".