21410302442 has 16 divisors (see below), whose sum is σ = 32434239552. Its totient is φ = 10598934240.

The previous prime is 21410302429. The next prime is 21410302447. The reversal of 21410302442 is 24420301412.

It is a super-2 number, since 2×21410302442² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21410302447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1345718 + ... + 1361534.

It is an arithmetic number, because the mean of its divisors is an integer number (2027139972).

Almost surely, 2^21410302442 is an apocalyptic number.

21410302442 is a deficient number, since it is larger than the sum of its proper divisors (11023937110).

21410302442 is a wasteful number, since it uses less digits than its factorization.

21410302442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22493.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 21410302442 its reverse (24420301412), we get a palindrome (45830603854).

The spelling of 21410302442 in words is "twenty-one billion, four hundred ten million, three hundred two thousand, four hundred forty-two".