2211490840 has 32 divisors (see below), whose sum is σ = 5358613680. Its totient is φ = 816550272.

The previous prime is 2211490823. The next prime is 2211490847. The reversal of 2211490840 is 480941122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211490847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2125914 + ... + 2126953.

Almost surely, 2^2211490840 is an apocalyptic number.

2211490840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2211490840 is an abundant number, since it is smaller than the sum of its proper divisors (3147122840).

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

2211490840 is a wasteful number, since it uses less digits than its factorization.

2211490840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4252891 (or 4252887 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 2211490840 is about 47026.4908322958. The cubic root of 2211490840 is about 1302.8518928919.

The spelling of 2211490840 in words is "two billion, two hundred eleven million, four hundred ninety thousand, eight hundred forty".