20340204412 has 24 divisors (see below), whose sum is σ = 38942593200. Its totient is φ = 9219048960.

The previous prime is 20340204407. The next prime is 20340204431. The reversal of 20340204412 is 21440204302.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 646933 + ... + 677644.

It is an arithmetic number, because the mean of its divisors is an integer number (1622608050).

Almost surely, 2^20340204412 is an apocalyptic number.

20340204412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20340204412 is a deficient number, since it is larger than the sum of its proper divisors (18602388788).

20340204412 is a wasteful number, since it uses less digits than its factorization.

20340204412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1324941 (or 1324939 counting only the distinct ones).

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

Adding to 20340204412 its reverse (21440204302), we get a palindrome (41780408714).

The spelling of 20340204412 in words is "twenty billion, three hundred forty million, two hundred four thousand, four hundred twelve".