21411412 has 24 divisors (see below), whose sum is σ = 40995360. Its totient is φ = 9704160.

The previous prime is 21411407. The next prime is 21411431.

It is a happy number.

21411412 is nontrivially palindromic in base 10.

It is a nude number because it is divisible by every one of its digits.

It is a plaindrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25414 + ... + 26242.

It is an arithmetic number, because the mean of its divisors is an integer number (1708140).

Almost surely, 2^21411412 is an apocalyptic number.

21411412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21411412 is a deficient number, since it is larger than the sum of its proper divisors (19583948).

21411412 is a wasteful number, since it uses less digits than its factorization.

21411412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431 (or 1429 counting only the distinct ones).

The product of its digits is 64, while the sum is 16.

The square root of 21411412 is about 4627.2466975514. The cubic root of 21411412 is about 277.6824523159.

It can be divided in two parts, 2141 and 1412, that added together give a palindrome (3553).

The spelling of 21411412 in words is "twenty-one million, four hundred eleven thousand, four hundred twelve".