21274954 has 8 divisors (see below), whose sum is σ = 33300000. Its totient is φ = 10174956.

The previous prime is 21274949. The next prime is 21274961. The reversal of 21274954 is 45947212.

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, 231204 + ... + 231295.

It is an arithmetic number, because the mean of its divisors is an integer number (4162500).

Almost surely, 2^21274954 is an apocalyptic number.

21274954 is a deficient number, since it is larger than the sum of its proper divisors (12025046).

21274954 is a wasteful number, since it uses less digits than its factorization.

21274954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462524.

The product of its digits is 20160, while the sum is 34.

The square root of 21274954 is about 4612.4780758287. The cubic root of 21274954 is about 277.0912913136.

The spelling of 21274954 in words is "twenty-one million, two hundred seventy-four thousand, nine hundred fifty-four".