2204240040 has 80 divisors (see below), whose sum is σ = 7408706580. Its totient is φ = 587796480.

The previous prime is 2204240023. The next prime is 2204240107. The reversal of 2204240040 is 400424022.

2204240040 is a `hidden beast` number, since 220 + 4 + 2 + 400 + 40 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2105157924 + 99082116 = 45882^2 + 9954^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2204239995 and 2204240022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 336921 + ... + 343400.

Almost surely, 2^2204240040 is an apocalyptic number.

2204240040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2204240040 is an abundant number, since it is smaller than the sum of its proper divisors (5204466540).

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

2204240040 is a wasteful number, since it uses less digits than its factorization.

2204240040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680344 (or 680331 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 2204240040 is about 46949.3348195691. The cubic root of 2204240040 is about 1301.4264500069.

Adding to 2204240040 its reverse (400424022), we get a palindrome (2604664062).

The spelling of 2204240040 in words is "two billion, two hundred four million, two hundred forty thousand, forty".