21326294 has 8 divisors (see below), whose sum is σ = 34897608. Its totient is φ = 9693760.

The previous prime is 21326231. The next prime is 21326309. The reversal of 21326294 is 49262312.

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

It is a congruent number.

It is an unprimeable number.

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, 484667 + ... + 484710.

It is an arithmetic number, because the mean of its divisors is an integer number (4362201).

Almost surely, 2^21326294 is an apocalyptic number.

21326294 is a deficient number, since it is larger than the sum of its proper divisors (13571314).

21326294 is a wasteful number, since it uses less digits than its factorization.

21326294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969390.

The product of its digits is 5184, while the sum is 29.

The square root of 21326294 is about 4618.0400604585. The cubic root of 21326294 is about 277.3140013773.

The spelling of 21326294 in words is "twenty-one million, three hundred twenty-six thousand, two hundred ninety-four".