21062334 has 16 divisors (see below), whose sum is σ = 42347520. Its totient is φ = 6983640.

The previous prime is 21062309. The next prime is 21062339. The reversal of 21062334 is 43326012.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 21062334.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21062339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8044 + ... + 10335.

It is an arithmetic number, because the mean of its divisors is an integer number (2646720).

Almost surely, 2^21062334 is an apocalyptic number.

21062334 is an abundant number, since it is smaller than the sum of its proper divisors (21285186).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21062334 is a wasteful number, since it uses less digits than its factorization.

21062334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18575.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 21062334 is about 4589.3718524434. The cubic root of 21062334 is about 276.1651238332.

Adding to 21062334 its reverse (43326012), we get a palindrome (64388346).

The spelling of 21062334 in words is "twenty-one million, sixty-two thousand, three hundred thirty-four".