21839062 has 8 divisors (see below), whose sum is σ = 37438416. Its totient is φ = 9359592.

The previous prime is 21839057. The next prime is 21839071. The reversal of 21839062 is 26093812.

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, 779953 + ... + 779980.

It is an arithmetic number, because the mean of its divisors is an integer number (4679802).

Almost surely, 2^21839062 is an apocalyptic number.

21839062 is a deficient number, since it is larger than the sum of its proper divisors (15599354).

21839062 is a wasteful number, since it uses less digits than its factorization.

21839062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1559942.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 21839062 is about 4673.2282204061. The cubic root of 21839062 is about 279.5189955973.

The spelling of 21839062 in words is "twenty-one million, eight hundred thirty-nine thousand, sixty-two".