21404414024330 has 64 divisors (see below), whose sum is σ = 40661125521408. Its totient is φ = 8096447673600.

The previous prime is 21404414024327. The next prime is 21404414024429. The reversal of 21404414024330 is 3342041440412.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15046199 + ... + 16407221.

It is an arithmetic number, because the mean of its divisors is an integer number (635330086272).

Almost surely, 2^{21404414024330} is an apocalyptic number.

21404414024330 is a deficient number, since it is larger than the sum of its proper divisors (19256711497078).

21404414024330 is a wasteful number, since it uses less digits than its factorization.

21404414024330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361831.

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 21404414024330 its reverse (3342041440412), we get a palindrome (24746455464742).

The spelling of 21404414024330 in words is "twenty-one trillion, four hundred four billion, four hundred fourteen million, twenty-four thousand, three hundred thirty".