13858530 has 32 divisors (see below), whose sum is σ = 38012544. Its totient is φ = 3167616.

The previous prime is 13858517. The next prime is 13858531. The reversal of 13858530 is 3585831.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13858491 and 13858500.

It is not an unprimeable number, because it can be changed into a prime (13858531) 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, 32787 + ... + 33206.

It is an arithmetic number, because the mean of its divisors is an integer number (1187892).

Almost surely, 2^13858530 is an apocalyptic number.

13858530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13858530 is an abundant number, since it is smaller than the sum of its proper divisors (24154014).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13858530 is a wasteful number, since it uses less digits than its factorization.

13858530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66010.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 13858530 is about 3722.7046619360. The cubic root of 13858530 is about 240.1996602419.

The spelling of 13858530 in words is "thirteen million, eight hundred fifty-eight thousand, five hundred thirty".