21424413010 has 64 divisors (see below), whose sum is σ = 51778185984. Its totient is φ = 6164064000.

The previous prime is 21424412951. The next prime is 21424413011. The reversal of 21424413010 is 1031442412.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (21424413011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1060141 + ... + 1080160.

It is an arithmetic number, because the mean of its divisors is an integer number (809034156).

Almost surely, 2^21424413010 is an apocalyptic number.

21424413010 is an abundant number, since it is smaller than the sum of its proper divisors (30353772974).

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

21424413010 is a wasteful number, since it uses less digits than its factorization.

21424413010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2140339.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 21424413010 its reverse (1031442412), we get a palindrome (22455855422).

It can be divided in two parts, 21424 and 413010, that added together give a palindrome (434434).

The spelling of 21424413010 in words is "twenty-one billion, four hundred twenty-four million, four hundred thirteen thousand, ten".