2197871040 has 224 divisors, whose sum is σ = 7338608640. Its totient is φ = 556609536.

The previous prime is 2197871033. The next prime is 2197871047. The reversal of 2197871040 is 401787912.

It is an interprime number because it is at equal distance from previous prime (2197871033) and next prime (2197871047).

It is a super-3 number, since 3×2197871040³ (a number of 29 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2197871040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2197871047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1526641 + ... + 1528079.

Almost surely, 2^2197871040 is an apocalyptic number.

2197871040 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 2197871040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3669304320).

2197871040 is an abundant number, since it is smaller than the sum of its proper divisors (5140737600).

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

2197871040 is a wasteful number, since it uses less digits than its factorization.

2197871040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1539 (or 1529 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 39.

The square root of 2197871040 is about 46881.4573152329. The cubic root of 2197871040 is about 1300.1717800616.

The spelling of 2197871040 in words is "two billion, one hundred ninety-seven million, eight hundred seventy-one thousand, forty".