21496334 has 16 divisors (see below), whose sum is σ = 34861200. Its totient is φ = 9906624.

The previous prime is 21496331. The next prime is 21496373. The reversal of 21496334 is 43369412.

It is a self number, because there is not a number n which added to its sum of digits gives 21496334.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21496331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6239 + ... + 9050.

It is an arithmetic number, because the mean of its divisors is an integer number (2178825).

Almost surely, 2^21496334 is an apocalyptic number.

21496334 is a deficient number, since it is larger than the sum of its proper divisors (13364866).

21496334 is a wasteful number, since it uses less digits than its factorization.

21496334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15347.

The product of its digits is 15552, while the sum is 32.

The square root of 21496334 is about 4636.4139159484. The cubic root of 21496334 is about 278.0490829954.

The spelling of 21496334 in words is "twenty-one million, four hundred ninety-six thousand, three hundred thirty-four".