1223731424 has 36 divisors (see below), whose sum is σ = 2422842912. Its totient is φ = 608424000.

The previous prime is 1223731381. The next prime is 1223731427. The reversal of 1223731424 is 4241373221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223731427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2015729 + ... + 2016335.

It is an arithmetic number, because the mean of its divisors is an integer number (67301192).

Almost surely, 2^1223731424 is an apocalyptic number.

It is an amenable number.

1223731424 is a deficient number, since it is larger than the sum of its proper divisors (1199111488).

1223731424 is an frugal number, since it uses more digits than its factorization.

1223731424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119 (or 860 counting only the distinct ones).

The product of its digits is 8064, while the sum is 29.

The square root of 1223731424 is about 34981.8727914902. The cubic root of 1223731424 is about 1069.6180032165.

The spelling of 1223731424 in words is "one billion, two hundred twenty-three million, seven hundred thirty-one thousand, four hundred twenty-four".