21410612 has 6 divisors (see below), whose sum is σ = 37468578. Its totient is φ = 10705304.

The previous prime is 21410611. The next prime is 21410617. The reversal of 21410612 is 21601412.

It can be written as a sum of positive squares in only one way, i.e., 18438436 + 2972176 = 4294^2 + 1724^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21410611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2676323 + ... + 2676330.

It is an arithmetic number, because the mean of its divisors is an integer number (6244763).

Almost surely, 2^21410612 is an apocalyptic number.

It is an amenable number.

21410612 is a deficient number, since it is larger than the sum of its proper divisors (16057966).

21410612 is a wasteful number, since it uses less digits than its factorization.

21410612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5352657 (or 5352655 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 21410612 is about 4627.1602522498. The cubic root of 21410612 is about 277.6789938996.

It can be divided in two parts, 21410 and 612, that added together give a palindrome (22022).

The spelling of 21410612 in words is "twenty-one million, four hundred ten thousand, six hundred twelve".