20034424399 has 4 divisors (see below), whose sum is σ = 21855735720. Its totient is φ = 18213113080.

The previous prime is 20034424369. The next prime is 20034424453. The reversal of 20034424399 is 99342443002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20034424399 - 2¹¹ = 20034422351 is a prime.

It is a super-2 number, since 2×20034424399² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20034424349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 910655644 + ... + 910655665.

It is an arithmetic number, because the mean of its divisors is an integer number (5463933930).

Almost surely, 2^20034424399 is an apocalyptic number.

20034424399 is a deficient number, since it is larger than the sum of its proper divisors (1821311321).

20034424399 is a wasteful number, since it uses less digits than its factorization.

20034424399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1821311320.

The product of its (nonzero) digits is 186624, while the sum is 40.

The spelling of 20034424399 in words is "twenty billion, thirty-four million, four hundred twenty-four thousand, three hundred ninety-nine".