21339062 has 4 divisors (see below), whose sum is σ = 32008596. Its totient is φ = 10669530.

The previous prime is 21339053. The next prime is 21339077. The reversal of 21339062 is 26093312.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5334764 + ... + 5334767.

It is an arithmetic number, because the mean of its divisors is an integer number (8002149).

Almost surely, 2^21339062 is an apocalyptic number.

21339062 is a deficient number, since it is larger than the sum of its proper divisors (10669534).

21339062 is a wasteful number, since it uses less digits than its factorization.

21339062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10669533.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 21339062 is about 4619.4222582483. The cubic root of 21339062 is about 277.3693327411.

The spelling of 21339062 in words is "twenty-one million, three hundred thirty-nine thousand, sixty-two".