2213451240 has 256 divisors, whose sum is σ = 8916203520. Its totient is φ = 424535040.

The previous prime is 2213451223. The next prime is 2213451263. The reversal of 2213451240 is 421543122.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2213451240.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 110907 + ... + 129333.

It is an arithmetic number, because the mean of its divisors is an integer number (34828920).

Almost surely, 2^2213451240 is an apocalyptic number.

2213451240 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 2213451240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4458101760).

2213451240 is an abundant number, since it is smaller than the sum of its proper divisors (6702752280).

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

2213451240 is a wasteful number, since it uses less digits than its factorization.

2213451240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18472 (or 18468 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 2213451240 is about 47047.3297860782. The cubic root of 2213451240 is about 1303.2367549149.

Adding to 2213451240 its reverse (421543122), we get a palindrome (2634994362).

The spelling of 2213451240 in words is "two billion, two hundred thirteen million, four hundred fifty-one thousand, two hundred forty".