13022690 has 8 divisors (see below), whose sum is σ = 23440860. Its totient is φ = 5209072.

The previous prime is 13022687. The next prime is 13022699. The reversal of 13022690 is 9622031.

It can be written as a sum of positive squares in 2 ways, for example, as 12243001 + 779689 = 3499^2 + 883^2 .

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

It is a super-2 number, since 2×13022690² = 339180909672200, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13022699) 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 3 ways as a sum of consecutive naturals, for example, 651125 + ... + 651144.

Almost surely, 2^13022690 is an apocalyptic number.

13022690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13022690 is a deficient number, since it is larger than the sum of its proper divisors (10418170).

13022690 is a wasteful number, since it uses less digits than its factorization.

13022690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302276.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 13022690 is about 3608.6964405447. The cubic root of 13022690 is about 235.2701887063.

The spelling of 13022690 in words is "thirteen million, twenty-two thousand, six hundred ninety".