20962241 has 4 divisors (see below), whose sum is σ = 22195332. Its totient is φ = 19729152.

The previous prime is 20962219. The next prime is 20962243. The reversal of 20962241 is 14226902.

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

It can be written as a sum of positive squares in 2 ways, for example, as 12673600 + 8288641 = 3560^2 + 2879^2 .

It is a cyclic number.

It is not a de Polignac number, because 20962241 - 2¹⁴ = 20945857 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20962241.

It is not an unprimeable number, because it can be changed into a prime (20962243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 616520 + ... + 616553.

It is an arithmetic number, because the mean of its divisors is an integer number (5548833).

Almost surely, 2^20962241 is an apocalyptic number.

It is an amenable number.

20962241 is a deficient number, since it is larger than the sum of its proper divisors (1233091).

20962241 is a wasteful number, since it uses less digits than its factorization.

20962241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233090.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 20962241 is about 4578.4539967111. The cubic root of 20962241 is about 275.7269625315.

The spelling of 20962241 in words is "twenty million, nine hundred sixty-two thousand, two hundred forty-one".