1223514420 has 24 divisors (see below), whose sum is σ = 3425840544. Its totient is φ = 326270496.

The previous prime is 1223514419. The next prime is 1223514421. The reversal of 1223514420 is 244153221.

It is an interprime number because it is at equal distance from previous prime (1223514419) and next prime (1223514421).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223514421) 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, 10195894 + ... + 10196013.

It is an arithmetic number, because the mean of its divisors is an integer number (142743356).

Almost surely, 2^1223514420 is an apocalyptic number.

1223514420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223514420 is an abundant number, since it is smaller than the sum of its proper divisors (2202326124).

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

1223514420 is a wasteful number, since it uses less digits than its factorization.

1223514420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20391919 (or 20391917 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 1223514420 is about 34978.7709904165. The cubic root of 1223514420 is about 1069.5547744442.

Adding to 1223514420 its reverse (244153221), we get a palindrome (1467667641).

The spelling of 1223514420 in words is "one billion, two hundred twenty-three million, five hundred fourteen thousand, four hundred twenty".