13945443 has 16 divisors (see below), whose sum is σ = 19378176. Its totient is φ = 8910720.

The previous prime is 13945441. The next prime is 13945469. The reversal of 13945443 is 34454931.

13945443 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13945443 - 2¹ = 13945441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13945441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9846 + ... + 11172.

It is an arithmetic number, because the mean of its divisors is an integer number (1211136).

Almost surely, 2^13945443 is an apocalyptic number.

13945443 is a deficient number, since it is larger than the sum of its proper divisors (5432733).

13945443 is a wasteful number, since it uses less digits than its factorization.

13945443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1474.

The product of its digits is 25920, while the sum is 33.

The square root of 13945443 is about 3734.3597844878. The cubic root of 13945443 is about 240.7007471204.

The spelling of 13945443 in words is "thirteen million, nine hundred forty-five thousand, four hundred forty-three".