2204003640 has 32 divisors (see below), whose sum is σ = 6612011280. Its totient is φ = 587734272.

The previous prime is 2204003611. The next prime is 2204003677. The reversal of 2204003640 is 463004022.

2204003640 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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, 9183229 + ... + 9183468.

Almost surely, 2^2204003640 is an apocalyptic number.

2204003640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2204003640 is an abundant number, since it is smaller than the sum of its proper divisors (4408007640).

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

2204003640 is a wasteful number, since it uses less digits than its factorization.

2204003640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18366711 (or 18366707 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 2204003640 is about 46946.8171445094. The cubic root of 2204003640 is about 1301.3799232817.

Adding to 2204003640 its reverse (463004022), we get a palindrome (2667007662).

The spelling of 2204003640 in words is "two billion, two hundred four million, three thousand, six hundred forty".