2197490140 has 48 divisors (see below), whose sum is σ = 4668824160. Its totient is φ = 868734720.

The previous prime is 2197490131. The next prime is 2197490147. The reversal of 2197490140 is 410947912.

2197490140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2197490140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2197490147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1069354 + ... + 1071406.

It is an arithmetic number, because the mean of its divisors is an integer number (97267170).

Almost surely, 2^2197490140 is an apocalyptic number.

2197490140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2197490140 is an abundant number, since it is smaller than the sum of its proper divisors (2471334020).

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

2197490140 is a wasteful number, since it uses less digits than its factorization.

2197490140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2662 (or 2660 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 2197490140 is about 46877.3947654944. The cubic root of 2197490140 is about 1300.0966673679.

The spelling of 2197490140 in words is "two billion, one hundred ninety-seven million, four hundred ninety thousand, one hundred forty".