16244631 has 20 divisors (see below), whose sum is σ = 26135032. Its totient is φ = 9996048.

The previous prime is 16244629. The next prime is 16244689. The reversal of 16244631 is 13644261.

16244631 is a `hidden beast` number, since 1 + 6 + 24 + 4 + 631 = 666.

It is not a de Polignac number, because 16244631 - 2¹ = 16244629 is a prime.

It is a super-2 number, since 2×16244631² = 527776072652322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16244595 and 16244604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16254631) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 6661 + ... + 8766.

Almost surely, 2^16244631 is an apocalyptic number.

16244631 is a deficient number, since it is larger than the sum of its proper divisors (9890401).

16244631 is a wasteful number, since it uses less digits than its factorization.

16244631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15452 (or 15443 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 16244631 is about 4030.4628766433. The cubic root of 16244631 is about 253.2619522267.

Adding to 16244631 its reverse (13644261), we get a palindrome (29888892).

The spelling of 16244631 in words is "sixteen million, two hundred forty-four thousand, six hundred thirty-one".