2201820040 has 32 divisors (see below), whose sum is σ = 5661823680. Its totient is φ = 754909632.

The previous prime is 2201820037. The next prime is 2201820053. The reversal of 2201820040 is 400281022.

It is a super-2 number, since 2×2201820040² = 9696022977091203200, which contains 22 as substring.

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, 3931542 + ... + 3932101.

It is an arithmetic number, because the mean of its divisors is an integer number (176931990).

Almost surely, 2^2201820040 is an apocalyptic number.

2201820040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2201820040 is an abundant number, since it is smaller than the sum of its proper divisors (3460003640).

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

2201820040 is a wasteful number, since it uses less digits than its factorization.

2201820040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7863661 (or 7863657 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 2201820040 is about 46923.5552787723. Note that the first 3 decimals coincide. The cubic root of 2201820040 is about 1300.9500038194.

The spelling of 2201820040 in words is "two billion, two hundred one million, eight hundred twenty thousand, forty".