21413024402 has 24 divisors (see below), whose sum is σ = 40760230320. Its totient is φ = 8342736360.

The previous prime is 21413024387. The next prime is 21413024431. The reversal of 21413024402 is 20442031412.

It is a super-2 number, since 2×21413024402² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9930752 + ... + 9932907.

It is an arithmetic number, because the mean of its divisors is an integer number (1698342930).

Almost surely, 2^21413024402 is an apocalyptic number.

21413024402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21413024402 is a deficient number, since it is larger than the sum of its proper divisors (19347205918).

21413024402 is a wasteful number, since it uses less digits than its factorization.

21413024402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19863686 (or 19863679 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 21413024402 its reverse (20442031412), we get a palindrome (41855055814).

The spelling of 21413024402 in words is "twenty-one billion, four hundred thirteen million, twenty-four thousand, four hundred two".