13909450 has 24 divisors (see below), whose sum is σ = 25989408. Its totient is φ = 5538480.

The previous prime is 13909439. The next prime is 13909453. The reversal of 13909450 is 5490931.

It is not an unprimeable number, because it can be changed into a prime (13909453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13659 + ... + 14641.

It is an arithmetic number, because the mean of its divisors is an integer number (1082892).

Almost surely, 2^13909450 is an apocalyptic number.

13909450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13909450 is a deficient number, since it is larger than the sum of its proper divisors (12079958).

13909450 is a wasteful number, since it uses less digits than its factorization.

13909450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278 (or 1273 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 13909450 is about 3729.5375048389. The cubic root of 13909450 is about 240.4934869138.

The spelling of 13909450 in words is "thirteen million, nine hundred nine thousand, four hundred fifty".