13950309 has 8 divisors (see below), whose sum is σ = 18672192. Its totient is φ = 9264320.

The previous prime is 13950301. The next prime is 13950311. The reversal of 13950309 is 90305931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13950309 - 2³ = 13950301 is a prime.

It is a super-2 number, since 2×13950309² = 389222242390962, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13950301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8052 + ... + 9629.

It is an arithmetic number, because the mean of its divisors is an integer number (2334024).

Almost surely, 2^13950309 is an apocalyptic number.

It is an amenable number.

13950309 is a deficient number, since it is larger than the sum of its proper divisors (4721883).

13950309 is a wasteful number, since it uses less digits than its factorization.

13950309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17947.

The product of its (nonzero) digits is 3645, while the sum is 30.

The square root of 13950309 is about 3735.0112449630. The cubic root of 13950309 is about 240.7287398640.

The spelling of 13950309 in words is "thirteen million, nine hundred fifty thousand, three hundred nine".