13870830 has 16 divisors (see below), whose sum is σ = 33290064. Its totient is φ = 3698880.

The previous prime is 13870807. The next prime is 13870837. The reversal of 13870830 is 3807831.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 462361 = 13870830 / (1 + 3 + 8 + 7 + 0 + 8 + 3 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13870837) 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, 231151 + ... + 231210.

It is an arithmetic number, because the mean of its divisors is an integer number (2080629).

Almost surely, 2^13870830 is an apocalyptic number.

13870830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13870830 is an abundant number, since it is smaller than the sum of its proper divisors (19419234).

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

13870830 is a wasteful number, since it uses less digits than its factorization.

13870830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462371.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 13870830 is about 3724.3563202250. The cubic root of 13870830 is about 240.2707014992.

The spelling of 13870830 in words is "thirteen million, eight hundred seventy thousand, eight hundred thirty".