21411422304 has 48 divisors (see below), whose sum is σ = 56263350528. Its totient is φ = 7129729152.

The previous prime is 21411422281. The next prime is 21411422311. The reversal of 21411422304 is 40322411412.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22492 + ... + 208155.

It is an arithmetic number, because the mean of its divisors is an integer number (1172153136).

Almost surely, 2^21411422304 is an apocalyptic number.

21411422304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

21411422304 is an abundant number, since it is smaller than the sum of its proper divisors (34851928224).

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

21411422304 is a wasteful number, since it uses less digits than its factorization.

21411422304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231627 (or 231619 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 21411422304 its reverse (40322411412), we get a palindrome (61733833716).

The spelling of 21411422304 in words is "twenty-one billion, four hundred eleven million, four hundred twenty-two thousand, three hundred four".