12453938 has 12 divisors (see below), whose sum is σ = 21731022. Its totient is φ = 5337360.

The previous prime is 12453929. The next prime is 12453967. The reversal of 12453938 is 83935421.

It can be written as a sum of positive squares in only one way, i.e., 11336689 + 1117249 = 3367^2 + 1057^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12453898 and 12453907.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63443 + ... + 63638.

Almost surely, 2^12453938 is an apocalyptic number.

12453938 is a deficient number, since it is larger than the sum of its proper divisors (9277084).

12453938 is a wasteful number, since it uses less digits than its factorization.

12453938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127097 (or 127090 counting only the distinct ones).

The product of its digits is 25920, while the sum is 35.

The square root of 12453938 is about 3529.0137432433. The cubic root of 12453938 is about 231.7940229877.

The spelling of 12453938 in words is "twelve million, four hundred fifty-three thousand, nine hundred thirty-eight".