13923630 has 128 divisors (see below), whose sum is σ = 43545600. Its totient is φ = 3100032.

The previous prime is 13923617. The next prime is 13923631. The reversal of 13923630 is 3632931.

13923630 is a `hidden beast` number, since 1 + 3 + 9 + 23 + 630 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 13923594 and 13923603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13923631) 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 63 ways as a sum of consecutive naturals, for example, 100101 + ... + 100239.

It is an arithmetic number, because the mean of its divisors is an integer number (340200).

Almost surely, 2^13923630 is an apocalyptic number.

13923630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13923630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21772800).

13923630 is an abundant number, since it is smaller than the sum of its proper divisors (29621970).

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

13923630 is a wasteful number, since it uses less digits than its factorization.

13923630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 209 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

The square root of 13923630 is about 3731.4380605874. The cubic root of 13923630 is about 240.5751829180.

The spelling of 13923630 in words is "thirteen million, nine hundred twenty-three thousand, six hundred thirty".