13929530 has 8 divisors (see below), whose sum is σ = 25073172. Its totient is φ = 5571808.

The previous prime is 13929529. The next prime is 13929547. The reversal of 13929530 is 3592931.

It can be written as a sum of positive squares in 2 ways, for example, as 12866569 + 1062961 = 3587^2 + 1031^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 696467 + ... + 696486.

Almost surely, 2^13929530 is an apocalyptic number.

13929530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13929530 is a deficient number, since it is larger than the sum of its proper divisors (11143642).

13929530 is a wasteful number, since it uses less digits than its factorization.

13929530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392960.

The product of its (nonzero) digits is 7290, while the sum is 32.

The square root of 13929530 is about 3732.2285567741. The cubic root of 13929530 is about 240.6091585681.

The spelling of 13929530 in words is "thirteen million, nine hundred twenty-nine thousand, five hundred thirty".