21301834 has 8 divisors (see below), whose sum is σ = 33054660. Its totient is φ = 10283616.

The previous prime is 21301823. The next prime is 21301843. The reversal of 21301834 is 43810312.

It can be written as a sum of positive squares in 2 ways, for example, as 20657025 + 644809 = 4545^2 + 803^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183579 + ... + 183694.

Almost surely, 2^21301834 is an apocalyptic number.

21301834 is a deficient number, since it is larger than the sum of its proper divisors (11752826).

21301834 is a wasteful number, since it uses less digits than its factorization.

21301834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367304.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 21301834 is about 4615.3909910212. The cubic root of 21301834 is about 277.2079398897.

The spelling of 21301834 in words is "twenty-one million, three hundred one thousand, eight hundred thirty-four".