2201555340 has 72 divisors (see below), whose sum is σ = 6804081648. Its totient is φ = 576001920.

The previous prime is 2201555231. The next prime is 2201555347. The reversal of 2201555340 is 435551022.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2201555347) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105846 + ... + 124925.

It is an arithmetic number, because the mean of its divisors is an integer number (94501134).

Almost surely, 2^2201555340 is an apocalyptic number.

2201555340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2201555340 is an abundant number, since it is smaller than the sum of its proper divisors (4602526308).

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

2201555340 is a wasteful number, since it uses less digits than its factorization.

2201555340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230839 (or 230834 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 2201555340 is about 46920.7346489801. The cubic root of 2201555340 is about 1300.8978688795.

The spelling of 2201555340 in words is "two billion, two hundred one million, five hundred fifty-five thousand, three hundred forty".