2221502460 has 24 divisors (see below), whose sum is σ = 6220207056. Its totient is φ = 592400640.

The previous prime is 2221502447. The next prime is 2221502461. The reversal of 2221502460 is 642051222.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2221502460.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221502461) 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, 18512461 + ... + 18512580.

It is an arithmetic number, because the mean of its divisors is an integer number (259175294).

Almost surely, 2^2221502460 is an apocalyptic number.

2221502460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221502460 is an abundant number, since it is smaller than the sum of its proper divisors (3998704596).

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

2221502460 is a wasteful number, since it uses less digits than its factorization.

2221502460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37025053 (or 37025051 counting only the distinct ones).

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

The square root of 2221502460 is about 47132.8172296119. The cubic root of 2221502460 is about 1304.8149764843.

Adding to 2221502460 its reverse (642051222), we get a palindrome (2863553682).

The spelling of 2221502460 in words is "two billion, two hundred twenty-one million, five hundred two thousand, four hundred sixty".