2221453040 has 20 divisors (see below), whose sum is σ = 5164878504. Its totient is φ = 888581184.

The previous prime is 2221452997. The next prime is 2221453051. The reversal of 2221453040 is 403541222.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 2221452997 and 2221453015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13884002 + ... + 13884161.

Almost surely, 2^2221453040 is an apocalyptic number.

2221453040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221453040 is an abundant number, since it is smaller than the sum of its proper divisors (2943425464).

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

2221453040 is a wasteful number, since it uses less digits than its factorization.

2221453040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27768176 (or 27768170 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 2221453040 is about 47132.2929635298. The cubic root of 2221453040 is about 1304.8053006852.

Adding to 2221453040 its reverse (403541222), we get a palindrome (2624994262).

The spelling of 2221453040 in words is "two billion, two hundred twenty-one million, four hundred fifty-three thousand, forty".