1223345670 has 48 divisors (see below), whose sum is σ = 3118918608. Its totient is φ = 307033600.

The previous prime is 1223345623. The next prime is 1223345693. The reversal of 1223345670 is 765433221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61881 + ... + 79220.

It is an arithmetic number, because the mean of its divisors is an integer number (64977471).

Almost surely, 2^1223345670 is an apocalyptic number.

1223345670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1223345670 is an abundant number, since it is smaller than the sum of its proper divisors (1895572938).

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

1223345670 is a wasteful number, since it uses less digits than its factorization.

1223345670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141145 (or 141128 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 1223345670 is about 34976.3587298621. The cubic root of 1223345670 is about 1069.5056003428.

Adding to 1223345670 its reverse (765433221), we get a palindrome (1988778891).

The spelling of 1223345670 in words is "one billion, two hundred twenty-three million, three hundred forty-five thousand, six hundred seventy".