21410722 has 4 divisors (see below), whose sum is σ = 32116086. Its totient is φ = 10705360.

The previous prime is 21410699. The next prime is 21410731. The reversal of 21410722 is 22701412.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20602521 + 808201 = 4539^2 + 899^2 .

It is a super-2 number, since 2×21410722² = 916838033122568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21410722.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5352679 + ... + 5352682.

Almost surely, 2^21410722 is an apocalyptic number.

21410722 is a deficient number, since it is larger than the sum of its proper divisors (10705364).

21410722 is a wasteful number, since it uses less digits than its factorization.

21410722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10705363.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 21410722 is about 4627.1721385745. The cubic root of 21410722 is about 277.6794694370.

The spelling of 21410722 in words is "twenty-one million, four hundred ten thousand, seven hundred twenty-two".