13631390 has 8 divisors (see below), whose sum is σ = 24536520. Its totient is φ = 5452552.

The previous prime is 13631383. The next prime is 13631411. The reversal of 13631390 is 9313631.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 681560 + ... + 681579.

It is an arithmetic number, because the mean of its divisors is an integer number (3067065).

Almost surely, 2^13631390 is an apocalyptic number.

13631390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13631390 is a deficient number, since it is larger than the sum of its proper divisors (10905130).

13631390 is a wasteful number, since it uses less digits than its factorization.

13631390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1363146.

The product of its (nonzero) digits is 1458, while the sum is 26.

The square root of 13631390 is about 3692.0712344157. The cubic root of 13631390 is about 238.8801415782.

The spelling of 13631390 in words is "thirteen million, six hundred thirty-one thousand, three hundred ninety".