11945438 has 4 divisors (see below), whose sum is σ = 17918160. Its totient is φ = 5972718.

The previous prime is 11945429. The next prime is 11945449. The reversal of 11945438 is 83454911.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11945398 and 11945407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2986358 + ... + 2986361.

It is an arithmetic number, because the mean of its divisors is an integer number (4479540).

Almost surely, 2^11945438 is an apocalyptic number.

11945438 is a deficient number, since it is larger than the sum of its proper divisors (5972722).

11945438 is an equidigital number, since it uses as much as digits as its factorization.

11945438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5972721.

The product of its digits is 17280, while the sum is 35.

The square root of 11945438 is about 3456.2172964095. The cubic root of 11945438 is about 228.5953329538.

The spelling of 11945438 in words is "eleven million, nine hundred forty-five thousand, four hundred thirty-eight".