13890022 has 16 divisors (see below), whose sum is σ = 22331232. Its totient is φ = 6462720.

The previous prime is 13890013. The next prime is 13890029. The reversal of 13890022 is 22009831.

It is a super-2 number, since 2×13890022² = 385865422320968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13890029) 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, 2379 + ... + 5782.

It is an arithmetic number, because the mean of its divisors is an integer number (1395702).

Almost surely, 2^13890022 is an apocalyptic number.

13890022 is a deficient number, since it is larger than the sum of its proper divisors (8441210).

13890022 is a wasteful number, since it uses less digits than its factorization.

13890022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8223.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 13890022 is about 3726.9319822073. The cubic root of 13890022 is about 240.3814651229.

Adding to 13890022 its reverse (22009831), we get a palindrome (35899853).

The spelling of 13890022 in words is "thirteen million, eight hundred ninety thousand, twenty-two".