20434003412 has 6 divisors (see below), whose sum is σ = 35759505978. Its totient is φ = 10217001704.

The previous prime is 20434003399. The next prime is 20434003439. The reversal of 20434003412 is 21430043402.

It can be written as a sum of positive squares in only one way, i.e., 15484318096 + 4949685316 = 124436^2 + 70354^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2554250423 + ... + 2554250430.

It is an arithmetic number, because the mean of its divisors is an integer number (5959917663).

Almost surely, 2^20434003412 is an apocalyptic number.

It is an amenable number.

20434003412 is a deficient number, since it is larger than the sum of its proper divisors (15325502566).

20434003412 is a wasteful number, since it uses less digits than its factorization.

20434003412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5108500857 (or 5108500855 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 20434003412 its reverse (21430043402), we get a palindrome (41864046814).

The spelling of 20434003412 in words is "twenty billion, four hundred thirty-four million, three thousand, four hundred twelve".