21074462 has 8 divisors (see below), whose sum is σ = 31738392. Its totient is φ = 10495000.

The previous prime is 21074419. The next prime is 21074489. The reversal of 21074462 is 26447012.

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

It is a congruent number.

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, 20489 + ... + 21492.

It is an arithmetic number, because the mean of its divisors is an integer number (3967299).

Almost surely, 2^21074462 is an apocalyptic number.

21074462 is a deficient number, since it is larger than the sum of its proper divisors (10663930).

21074462 is a wasteful number, since it uses less digits than its factorization.

21074462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42234.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 21074462 is about 4590.6929760114. The cubic root of 21074462 is about 276.2181203017.

The spelling of 21074462 in words is "twenty-one million, seventy-four thousand, four hundred sixty-two".