21412310 has 16 divisors (see below), whose sum is σ = 40218336. Its totient is φ = 8192448.

The previous prime is 21412309. The next prime is 21412319. The reversal of 21412310 is 1321412.

It is a super-2 number, since 2×21412310² = 916974039072200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21412319) 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, 46319 + ... + 46778.

It is an arithmetic number, because the mean of its divisors is an integer number (2513646).

Almost surely, 2^21412310 is an apocalyptic number.

21412310 is a deficient number, since it is larger than the sum of its proper divisors (18806026).

21412310 is a wasteful number, since it uses less digits than its factorization.

21412310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93127.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 21412310 is about 4627.3437304786. The cubic root of 21412310 is about 277.6863342856.

Adding to 21412310 its reverse (1321412), we get a palindrome (22733722).

The spelling of 21412310 in words is "twenty-one million, four hundred twelve thousand, three hundred ten".