21410401 has 8 divisors (see below), whose sum is σ = 22412160. Its totient is φ = 20414592.

The previous prime is 21410399. The next prime is 21410407. The reversal of 21410401 is 10401412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21410401 - 2¹ = 21410399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21410407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6961 + ... + 9553.

It is an arithmetic number, because the mean of its divisors is an integer number (2801520).

Almost surely, 2^21410401 is an apocalyptic number.

It is an amenable number.

21410401 is a deficient number, since it is larger than the sum of its proper divisors (1001759).

21410401 is a wasteful number, since it uses less digits than its factorization.

21410401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2975.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 21410401 is about 4627.1374520323. The cubic root of 21410401 is about 277.6780817280.

Adding to 21410401 its reverse (10401412), we get a palindrome (31811813).

The spelling of 21410401 in words is "twenty-one million, four hundred ten thousand, four hundred one".