13918632 has 64 divisors (see below), whose sum is σ = 42833280. Its totient is φ = 3670272.

The previous prime is 13918613. The next prime is 13918633. The reversal of 13918632 is 23681931.

It is a junction number, because it is equal to n+sod(n) for n = 13918593 and 13918602.

It is not an unprimeable number, because it can be changed into a prime (13918633) 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, 1003 + ... + 5370.

It is an arithmetic number, because the mean of its divisors is an integer number (669270).

Almost surely, 2^13918632 is an apocalyptic number.

13918632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13918632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21416640).

13918632 is an abundant number, since it is smaller than the sum of its proper divisors (28914648).

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

13918632 is a wasteful number, since it uses less digits than its factorization.

13918632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6402 (or 6398 counting only the distinct ones).

The product of its digits is 7776, while the sum is 33.

The square root of 13918632 is about 3730.7682854876. The cubic root of 13918632 is about 240.5463940015.

The spelling of 13918632 in words is "thirteen million, nine hundred eighteen thousand, six hundred thirty-two".