21032294 has 8 divisors (see below), whose sum is σ = 31674888. Its totient is φ = 10474000.

The previous prime is 21032293. The next prime is 21032299. The reversal of 21032294 is 49223012.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21032293) 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, 20447 + ... + 21450.

It is an arithmetic number, because the mean of its divisors is an integer number (3959361).

Almost surely, 2^21032294 is an apocalyptic number.

21032294 is a deficient number, since it is larger than the sum of its proper divisors (10642594).

21032294 is a wasteful number, since it uses less digits than its factorization.

21032294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42150.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 21032294 is about 4586.0979056274. The cubic root of 21032294 is about 276.0337685351.

The spelling of 21032294 in words is "twenty-one million, thirty-two thousand, two hundred ninety-four".