21241413402 has 64 divisors (see below), whose sum is σ = 50115262464. Its totient is φ = 5929245440.

The previous prime is 21241413377. The next prime is 21241413421. The reversal of 21241413402 is 20431414212.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 148668 + ... + 254135.

It is an arithmetic number, because the mean of its divisors is an integer number (783050976).

Almost surely, 2^21241413402 is an apocalyptic number.

21241413402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21241413402 is an abundant number, since it is smaller than the sum of its proper divisors (28873849062).

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

21241413402 is a wasteful number, since it uses less digits than its factorization.

21241413402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402883.

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

Adding to 21241413402 its reverse (20431414212), we get a palindrome (41672827614).

The spelling of 21241413402 in words is "twenty-one billion, two hundred forty-one million, four hundred thirteen thousand, four hundred two".