2201043440 has 40 divisors (see below), whose sum is σ = 5187541488. Its totient is φ = 868354560.

The previous prime is 2201043371. The next prime is 2201043487. The reversal of 2201043440 is 443401022.

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

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182606 + ... + 194285.

Almost surely, 2^2201043440 is an apocalyptic number.

2201043440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2201043440 is an abundant number, since it is smaller than the sum of its proper divisors (2986498048).

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

2201043440 is a wasteful number, since it uses less digits than its factorization.

2201043440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376977 (or 376971 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2201043440 is about 46915.2793874235. The cubic root of 2201043440 is about 1300.7970339187.

Adding to 2201043440 its reverse (443401022), we get a palindrome (2644444462).

The spelling of 2201043440 in words is "two billion, two hundred one million, forty-three thousand, four hundred forty".