16340631 has 8 divisors (see below), whose sum is σ = 22251264. Its totient is φ = 10661880.

The previous prime is 16340629. The next prime is 16340647. The reversal of 16340631 is 13604361.

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

It is not a de Polignac number, because 16340631 - 2¹ = 16340629 is a prime.

It is a super-2 number, since 2×16340631² = 534032442956322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16340651) 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, 57805 + ... + 58086.

It is an arithmetic number, because the mean of its divisors is an integer number (2781408).

Almost surely, 2^16340631 is an apocalyptic number.

16340631 is a deficient number, since it is larger than the sum of its proper divisors (5910633).

16340631 is a wasteful number, since it uses less digits than its factorization.

16340631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115941.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 16340631 is about 4042.3546356053. The cubic root of 16340631 is about 253.7598687386.

Adding to 16340631 its reverse (13604361), we get a palindrome (29944992).

The spelling of 16340631 in words is "sixteen million, three hundred forty thousand, six hundred thirty-one".