21410323044 has 48 divisors (see below), whose sum is σ = 54673227840. Its totient is φ = 6467235840.

The previous prime is 21410322931. The next prime is 21410323057. The reversal of 21410323044 is 44032301412.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217789 + ... + 300420.

It is an arithmetic number, because the mean of its divisors is an integer number (1139025580).

Almost surely, 2^21410323044 is an apocalyptic number.

It is an amenable number.

21410323044 is an abundant number, since it is smaller than the sum of its proper divisors (33262904796).

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

21410323044 is a wasteful number, since it uses less digits than its factorization.

21410323044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518540 (or 518538 counting only the distinct ones).

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

Adding to 21410323044 its reverse (44032301412), we get a palindrome (65442624456).

The spelling of 21410323044 in words is "twenty-one billion, four hundred ten million, three hundred twenty-three thousand, forty-four".