21033042414 has 32 divisors (see below), whose sum is σ = 43357939200. Its totient is φ = 6798943200.

The previous prime is 21033042383. The next prime is 21033042419. The reversal of 21033042414 is 41424033012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21033042419) 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 15 ways as a sum of consecutive naturals, for example, 378714 + ... + 430685.

It is an arithmetic number, because the mean of its divisors is an integer number (1354935600).

Almost surely, 2^21033042414 is an apocalyptic number.

21033042414 is an abundant number, since it is smaller than the sum of its proper divisors (22324896786).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21033042414 is a wasteful number, since it uses less digits than its factorization.

21033042414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809536.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 21033042414 its reverse (41424033012), we get a palindrome (62457075426).

The spelling of 21033042414 in words is "twenty-one billion, thirty-three million, forty-two thousand, four hundred fourteen".