2192841990 has 64 divisors (see below), whose sum is σ = 5857560000. Its totient is φ = 583759872.

The previous prime is 2192841983. The next prime is 2192841997. The reversal of 2192841990 is 991482912.

It is an interprime number because it is at equal distance from previous prime (2192841983) and next prime (2192841997).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2192841997) 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, 158886 + ... + 172134.

It is an arithmetic number, because the mean of its divisors is an integer number (91524375).

Almost surely, 2^2192841990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2192841990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2928780000).

2192841990 is an abundant number, since it is smaller than the sum of its proper divisors (3664718010).

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

2192841990 is a wasteful number, since it uses less digits than its factorization.

2192841990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13878 (or 13872 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The square root of 2192841990 is about 46827.7907870956. The cubic root of 2192841990 is about 1299.1793617572.

The spelling of 2192841990 in words is "two billion, one hundred ninety-two million, eight hundred forty-one thousand, nine hundred ninety".