20045400034 has 8 divisors (see below), whose sum is σ = 32801563728. Its totient is φ = 9111545460.

The previous prime is 20045400019. The next prime is 20045400041. The reversal of 20045400034 is 43000454002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 911154547 = 20045400034 / (2 + 0 + 0 + 4 + 5 + 4 + 0 + 0 + 0 + 3 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 20045399978 and 20045400014.

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 in 3 ways as a sum of consecutive naturals, for example, 455577252 + ... + 455577295.

It is an arithmetic number, because the mean of its divisors is an integer number (4100195466).

Almost surely, 2^20045400034 is an apocalyptic number.

20045400034 is a deficient number, since it is larger than the sum of its proper divisors (12756163694).

20045400034 is a wasteful number, since it uses less digits than its factorization.

20045400034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911154560.

The product of its (nonzero) digits is 1920, while the sum is 22.

Adding to 20045400034 its reverse (43000454002), we get a palindrome (63045854036).

The spelling of 20045400034 in words is "twenty billion, forty-five million, four hundred thousand, thirty-four".