13699442 has 8 divisors (see below), whose sum is σ = 20731356. Its totient is φ = 6788992.

The previous prime is 13699409. The next prime is 13699451. The reversal of 13699442 is 24499631.

It can be written as a sum of positive squares in 2 ways, for example, as 9541921 + 4157521 = 3089^2 + 2039^2 .

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

It is a super-2 number, since 2×13699442² = 375349422222728, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13699396 and 13699405.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30083 + ... + 30534.

Almost surely, 2^13699442 is an apocalyptic number.

13699442 is a deficient number, since it is larger than the sum of its proper divisors (7031914).

13699442 is a wasteful number, since it uses less digits than its factorization.

13699442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60732.

The product of its digits is 46656, while the sum is 38.

The square root of 13699442 is about 3701.2757260166. The cubic root of 13699442 is about 239.2770024048.

It can be divided in two parts, 13699 and 442, that added together give a palindrome (14141).

The spelling of 13699442 in words is "thirteen million, six hundred ninety-nine thousand, four hundred forty-two".