1223423546 has 16 divisors (see below), whose sum is σ = 1859725440. Its totient is φ = 603526560.

The previous prime is 1223423533. The next prime is 1223423549. The reversal of 1223423546 is 6453243221.

It is a super-3 number, since 3×1223423546³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1223423549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 361241 + ... + 364611.

It is an arithmetic number, because the mean of its divisors is an integer number (116232840).

Almost surely, 2^1223423546 is an apocalyptic number.

1223423546 is a deficient number, since it is larger than the sum of its proper divisors (636301894).

1223423546 is a wasteful number, since it uses less digits than its factorization.

1223423546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5749.

The product of its digits is 34560, while the sum is 32.

The square root of 1223423546 is about 34977.4719784035. The cubic root of 1223423546 is about 1069.5282941332.

Adding to 1223423546 its reverse (6453243221), we get a palindrome (7676666767).

The spelling of 1223423546 in words is "one billion, two hundred twenty-three million, four hundred twenty-three thousand, five hundred forty-six".