20400214324 has 24 divisors (see below), whose sum is σ = 41044752000. Its totient is φ = 8690594016.

The previous prime is 20400214277. The next prime is 20400214333. The reversal of 20400214324 is 42341200402.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20400214295 and 20400214304.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2176699 + ... + 2186050.

It is an arithmetic number, because the mean of its divisors is an integer number (1710198000).

Almost surely, 2^20400214324 is an apocalyptic number.

It is an amenable number.

20400214324 is an abundant number, since it is smaller than the sum of its proper divisors (20644537676).

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

20400214324 is a wasteful number, since it uses less digits than its factorization.

20400214324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4362927 (or 4362925 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 20400214324 its reverse (42341200402), we get a palindrome (62741414726).

The spelling of 20400214324 in words is "twenty billion, four hundred million, two hundred fourteen thousand, three hundred twenty-four".