1223579469 has 16 divisors (see below), whose sum is σ = 1878115968. Its totient is φ = 694083072.

The previous prime is 1223579449. The next prime is 1223579473. The reversal of 1223579469 is 9649753221.

It is not a de Polignac number, because 1223579469 - 2⁹ = 1223578957 is a prime.

It is a super-2 number, since 2×1223579469² = 2994293433916643922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223579449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209772 + ... + 215525.

It is an arithmetic number, because the mean of its divisors is an integer number (117382248).

Almost surely, 2^1223579469 is an apocalyptic number.

It is an amenable number.

1223579469 is a deficient number, since it is larger than the sum of its proper divisors (654536499).

1223579469 is a wasteful number, since it uses less digits than its factorization.

1223579469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425444.

The product of its digits is 816480, while the sum is 48.

The square root of 1223579469 is about 34979.7008134718. The cubic root of 1223579469 is about 1069.5737286509.

The spelling of 1223579469 in words is "one billion, two hundred twenty-three million, five hundred seventy-nine thousand, four hundred sixty-nine".