13945424 has 10 divisors (see below), whose sum is σ = 27019290. Its totient is φ = 6972704.

The previous prime is 13945403. The next prime is 13945427. The reversal of 13945424 is 42454931.

It can be written as a sum of positive squares in only one way, i.e., 9193024 + 4752400 = 3032^2 + 2180^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13945427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435779 + ... + 435810.

It is an arithmetic number, because the mean of its divisors is an integer number (2701929).

Almost surely, 2^13945424 is an apocalyptic number.

It is an amenable number.

13945424 is a deficient number, since it is larger than the sum of its proper divisors (13073866).

13945424 is an equidigital number, since it uses as much as digits as its factorization.

13945424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871597 (or 871591 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 13945424 is about 3734.3572405435. The cubic root of 13945424 is about 240.7006378059.

The spelling of 13945424 in words is "thirteen million, nine hundred forty-five thousand, four hundred twenty-four".