21442041410 has 16 divisors (see below), whose sum is σ = 40273747776. Its totient is φ = 8203911408.

The previous prime is 21442041391. The next prime is 21442041437. The reversal of 21442041410 is 1414024412.

It is a super-2 number, since 2×21442041410² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46612904 + ... + 46613363.

It is an arithmetic number, because the mean of its divisors is an integer number (2517109236).

Almost surely, 2^21442041410 is an apocalyptic number.

21442041410 is a deficient number, since it is larger than the sum of its proper divisors (18831706366).

21442041410 is a wasteful number, since it uses less digits than its factorization.

21442041410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93226297.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 21442041410 its reverse (1414024412), we get a palindrome (22856065822).

The spelling of 21442041410 in words is "twenty-one billion, four hundred forty-two million, forty-one thousand, four hundred ten".