20402441324 has 24 divisors (see below), whose sum is σ = 35963661888. Its totient is φ = 10127335680.

The previous prime is 20402441317. The next prime is 20402441327. The reversal of 20402441324 is 42314420402.

It is a happy number.

It is a super-2 number, since 2×20402441324² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20402441293 and 20402441302.

It is not an unprimeable number, because it can be changed into a prime (20402441327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336884 + ... + 392804.

It is an arithmetic number, because the mean of its divisors is an integer number (1498485912).

Almost surely, 2^20402441324 is an apocalyptic number.

It is an amenable number.

20402441324 is a deficient number, since it is larger than the sum of its proper divisors (15561220564).

20402441324 is a wasteful number, since it uses less digits than its factorization.

20402441324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56585 (or 56583 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 20402441324 its reverse (42314420402), we get a palindrome (62716861726).

The spelling of 20402441324 in words is "twenty billion, four hundred two million, four hundred forty-one thousand, three hundred twenty-four".