1223456670 has 32 divisors (see below), whose sum is σ = 3262551840. Its totient is φ = 326255040.

The previous prime is 1223456653. The next prime is 1223456693. The reversal of 1223456670 is 766543221.

1223456670 is a `hidden beast` number, since 1 + 2 + 23 + 4 + 566 + 70 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2265391 + ... + 2265930.

It is an arithmetic number, because the mean of its divisors is an integer number (101954745).

Almost surely, 2^1223456670 is an apocalyptic number.

1223456670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1223456670 is an abundant number, since it is smaller than the sum of its proper divisors (2039095170).

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

1223456670 is a wasteful number, since it uses less digits than its factorization.

1223456670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4531337 (or 4531331 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 1223456670 is about 34977.9454799735. The cubic root of 1223456670 is about 1069.5379464829.

Adding to 1223456670 its reverse (766543221), we get a palindrome (1989999891).

The spelling of 1223456670 in words is "one billion, two hundred twenty-three million, four hundred fifty-six thousand, six hundred seventy".