2197151040 has 448 divisors, whose sum is σ = 8427110400. Its totient is φ = 474439680.

The previous prime is 2197150999. The next prime is 2197151053. The reversal of 2197151040 is 401517912.

It is a tau number, because it is divible by the number of its divisors (448).

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 = 2197150989 and 2197151007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11040861 + ... + 11041059.

Almost surely, 2^2197151040 is an apocalyptic number.

2197151040 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 2197151040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4213555200).

2197151040 is an abundant number, since it is smaller than the sum of its proper divisors (6229959360).

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

2197151040 is a wasteful number, since it uses less digits than its factorization.

2197151040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310 (or 300 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 2197151040 is about 46873.7777440650. Note that the first 4 decimals coincide. The cubic root of 2197151040 is about 1300.0297902444.

Adding to 2197151040 its reverse (401517912), we get a palindrome (2598668952).

The spelling of 2197151040 in words is "two billion, one hundred ninety-seven million, one hundred fifty-one thousand, forty".