21474182 has 8 divisors (see below), whose sum is σ = 32375376. Its totient is φ = 10682392.

The previous prime is 21474143. The next prime is 21474217. The reversal of 21474182 is 28147412.

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

It is a super-2 number, since 2×21474182² = 922280985138248, which contains 22 as substring.

It is a pancake number, because a pancake can be divided into 21474182 parts by 6553 straight cuts.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26858 + ... + 27645.

It is an arithmetic number, because the mean of its divisors is an integer number (4046922).

Almost surely, 2^21474182 is an apocalyptic number.

21474182 is a deficient number, since it is larger than the sum of its proper divisors (10901194).

21474182 is a wasteful number, since it uses less digits than its factorization.

21474182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54702.

The product of its digits is 3584, while the sum is 29.

The square root of 21474182 is about 4634.0243849164. The cubic root of 21474182 is about 277.9535401890.

The spelling of 21474182 in words is "twenty-one million, four hundred seventy-four thousand, one hundred eighty-two".