21298094 has 8 divisors (see below), whose sum is σ = 32424168. Its totient is φ = 10490040.

The previous prime is 21298091. The next prime is 21298099. The reversal of 21298094 is 49089212.

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 (21298091) 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, 79337 + ... + 79604.

It is an arithmetic number, because the mean of its divisors is an integer number (4053021).

Almost surely, 2^21298094 is an apocalyptic number.

21298094 is a deficient number, since it is larger than the sum of its proper divisors (11126074).

21298094 is a wasteful number, since it uses less digits than its factorization.

21298094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159010.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 21298094 is about 4614.9858071288. The cubic root of 21298094 is about 277.1917156470.

The spelling of 21298094 in words is "twenty-one million, two hundred ninety-eight thousand, ninety-four".