21401410302 has 40 divisors (see below), whose sum is σ = 48232271736. Its totient is φ = 7092558288.

The previous prime is 21401410267. The next prime is 21401410309. The reversal of 21401410302 is 20301410412.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21401410309) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 353788 + ... + 409839.

Almost surely, 2^21401410302 is an apocalyptic number.

21401410302 is an abundant number, since it is smaller than the sum of its proper divisors (26830861434).

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

21401410302 is a wasteful number, since it uses less digits than its factorization.

21401410302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763814 (or 763805 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 21401410302 its reverse (20301410412), we get a palindrome (41702820714).

The spelling of 21401410302 in words is "twenty-one billion, four hundred one million, four hundred ten thousand, three hundred two".