21934062 has 12 divisors (see below), whose sum is σ = 47523840. Its totient is φ = 7311348.

The previous prime is 21934051. The next prime is 21934067. The reversal of 21934062 is 26043912.

It is a super-2 number, since 2×21934062² = 962206151639688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21934067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 609262 + ... + 609297.

It is an arithmetic number, because the mean of its divisors is an integer number (3960320).

Almost surely, 2^21934062 is an apocalyptic number.

21934062 is an abundant number, since it is smaller than the sum of its proper divisors (25589778).

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

21934062 is a wasteful number, since it uses less digits than its factorization.

21934062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1218567 (or 1218564 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 21934062 is about 4683.3814706897. The cubic root of 21934062 is about 279.9237122100.

Adding to 21934062 its reverse (26043912), we get a palindrome (47977974).

The spelling of 21934062 in words is "twenty-one million, nine hundred thirty-four thousand, sixty-two".