2223531440 has 80 divisors (see below), whose sum is σ = 5809503168. Its totient is φ = 785292288.

The previous prime is 2223531437. The next prime is 2223531469. The reversal of 2223531440 is 441353222.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22559 + ... + 70398.

Almost surely, 2^2223531440 is an apocalyptic number.

2223531440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2223531440 is an abundant number, since it is smaller than the sum of its proper divisors (3585971728).

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

2223531440 is a wasteful number, since it uses less digits than its factorization.

2223531440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93006 (or 93000 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 2223531440 is about 47154.3363859571. The cubic root of 2223531440 is about 1305.2121007946.

Adding to 2223531440 its reverse (441353222), we get a palindrome (2664884662).

The spelling of 2223531440 in words is "two billion, two hundred twenty-three million, five hundred thirty-one thousand, four hundred forty".