2201856840 has 96 divisors (see below), whose sum is σ = 7386912000. Its totient is φ = 568218240.

The previous prime is 2201856829. The next prime is 2201856841. The reversal of 2201856840 is 486581022.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2201856795 and 2201856804.

It is not an unprimeable number, because it can be changed into a prime (2201856841) 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, 87490 + ... + 109809.

It is an arithmetic number, because the mean of its divisors is an integer number (76947000).

Almost surely, 2^2201856840 is an apocalyptic number.

2201856840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2201856840 is an abundant number, since it is smaller than the sum of its proper divisors (5185055160).

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

2201856840 is a wasteful number, since it uses less digits than its factorization.

2201856840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197347 (or 197340 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 2201856840 is about 46923.9474042839. The cubic root of 2201856840 is about 1300.9572515648.

The spelling of 2201856840 in words is "two billion, two hundred one million, eight hundred fifty-six thousand, eight hundred forty".