2204962640 has 20 divisors (see below), whose sum is σ = 5126538324. Its totient is φ = 881985024.

The previous prime is 2204962621. The next prime is 2204962651. The reversal of 2204962640 is 462694022.

It can be written as a sum of positive squares in 2 ways, for example, as 1174295824 + 1030666816 = 34268^2 + 32104^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2204962640.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13780937 + ... + 13781096.

Almost surely, 2^2204962640 is an apocalyptic number.

2204962640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2204962640 is an abundant number, since it is smaller than the sum of its proper divisors (2921575684).

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

2204962640 is a wasteful number, since it uses less digits than its factorization.

2204962640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27562046 (or 27562040 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 2204962640 is about 46957.0297186694. The cubic root of 2204962640 is about 1301.5686468626.

The spelling of 2204962640 in words is "two billion, two hundred four million, nine hundred sixty-two thousand, six hundred forty".