21296046 has 8 divisors (see below), whose sum is σ = 42592104. Its totient is φ = 7098680.

The previous prime is 21296027. The next prime is 21296047. The reversal of 21296046 is 64069212.

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

21296046 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21296047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1774665 + ... + 1774676.

It is an arithmetic number, because the mean of its divisors is an integer number (5324013).

Almost surely, 2^21296046 is an apocalyptic number.

21296046 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21296046 is a wasteful number, since it uses less digits than its factorization.

21296046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3549346.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 21296046 is about 4614.7639159550. The cubic root of 21296046 is about 277.1828305510.

The spelling of 21296046 in words is "twenty-one million, two hundred ninety-six thousand, forty-six".