2223660988 has 6 divisors (see below), whose sum is σ = 3891406736. Its totient is φ = 1111830492.

The previous prime is 2223660983. The next prime is 2223660997. The reversal of 2223660988 is 8890663222.

It is a happy number.

2223660988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2223660988² = 9889336379106272288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2223660983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277957620 + ... + 277957627.

Almost surely, 2^2223660988 is an apocalyptic number.

It is an amenable number.

2223660988 is a deficient number, since it is larger than the sum of its proper divisors (1667745748).

2223660988 is a wasteful number, since it uses less digits than its factorization.

2223660988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555915251 (or 555915249 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 46.

The square root of 2223660988 is about 47155.7100254041. The cubic root of 2223660988 is about 1305.2374485111.

The spelling of 2223660988 in words is "two billion, two hundred twenty-three million, six hundred sixty thousand, nine hundred eighty-eight".