21410313240 has 32 divisors (see below), whose sum is σ = 64230940080. Its totient is φ = 5709416832.

The previous prime is 21410313233. The next prime is 21410313251. The reversal of 21410313240 is 4231301412.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89209519 + ... + 89209758.

Almost surely, 2^21410313240 is an apocalyptic number.

21410313240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21410313240 is an abundant number, since it is smaller than the sum of its proper divisors (42820626840).

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

21410313240 is a wasteful number, since it uses less digits than its factorization.

21410313240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178419291 (or 178419287 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 21410313240 its reverse (4231301412), we get a palindrome (25641614652).

The spelling of 21410313240 in words is "twenty-one billion, four hundred ten million, three hundred thirteen thousand, two hundred forty".