1223738 has 16 divisors (see below), whose sum is σ = 1969920. Its totient is φ = 568656.

The previous prime is 1223731. The next prime is 1223749. The reversal of 1223738 is 8373221.

It is not an unprimeable number, because it can be changed into a prime (1223731) 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, 1343 + ... + 2061.

It is an arithmetic number, because the mean of its divisors is an integer number (123120).

2^1223738 is an apocalyptic number.

1223738 is a deficient number, since it is larger than the sum of its proper divisors (746182).

1223738 is a wasteful number, since it uses less digits than its factorization.

1223738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781.

The product of its digits is 2016, while the sum is 26.

The square root of 1223738 is about 1106.2269206632. The cubic root of 1223738 is about 106.9619919158.

Adding to 1223738 its reverse (8373221), we get a palindrome (9596959).

The spelling of 1223738 in words is "one million, two hundred twenty-three thousand, seven hundred thirty-eight".