2201545040 has 40 divisors (see below), whose sum is σ = 5121005568. Its totient is φ = 880202880.

The previous prime is 2201545019. The next prime is 2201545043. The reversal of 2201545040 is 405451022.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 2201544997 and 2201545015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201545043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208529 + ... + 218831.

Almost surely, 2^2201545040 is an apocalyptic number.

2201545040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2201545040 is an abundant number, since it is smaller than the sum of its proper divisors (2919460528).

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

2201545040 is a wasteful number, since it uses less digits than its factorization.

2201545040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12987 (or 12981 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 2201545040 is about 46920.6248892744. The cubic root of 2201545040 is about 1300.8958401215.

Adding to 2201545040 its reverse (405451022), we get a palindrome (2606996062).

The spelling of 2201545040 in words is "two billion, two hundred one million, five hundred forty-five thousand, forty".