13631830 has 8 divisors (see below), whose sum is σ = 24537312. Its totient is φ = 5452728.

The previous prime is 13631819. The next prime is 13631831. The reversal of 13631830 is 3813631.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 13631795 and 13631804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13631831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 681582 + ... + 681601.

It is an arithmetic number, because the mean of its divisors is an integer number (3067164).

Almost surely, 2^13631830 is an apocalyptic number.

13631830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13631830 is a deficient number, since it is larger than the sum of its proper divisors (10905482).

13631830 is a wasteful number, since it uses less digits than its factorization.

13631830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1363190.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 13631830 is about 3692.1308210842. The cubic root of 13631830 is about 238.8827117767.

The spelling of 13631830 in words is "thirteen million, six hundred thirty-one thousand, eight hundred thirty".