21441401334 has 48 divisors (see below), whose sum is σ = 49206869712. Its totient is φ = 6724283904.

The previous prime is 21441401309. The next prime is 21441401341. The reversal of 21441401334 is 43310414412.

21441401334 is a `hidden beast` number, since 214 + 41 + 401 + 3 + 3 + 4 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 21441401298 and 21441401307.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 956802 + ... + 978954.

It is an arithmetic number, because the mean of its divisors is an integer number (1025143119).

Almost surely, 2^21441401334 is an apocalyptic number.

21441401334 is an abundant number, since it is smaller than the sum of its proper divisors (27765468378).

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

21441401334 is a wasteful number, since it uses less digits than its factorization.

21441401334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25341 (or 25338 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 21441401334 its reverse (43310414412), we get a palindrome (64751815746).

The spelling of 21441401334 in words is "twenty-one billion, four hundred forty-one million, four hundred one thousand, three hundred thirty-four".