20045022452 has 48 divisors (see below), whose sum is σ = 43619063040. Its totient is φ = 7848133632.

The previous prime is 20045022383. The next prime is 20045022511. The reversal of 20045022452 is 25422054002.

It is a Harshad number since it is a multiple of its sum of digits (26).

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 in 15 ways as a sum of consecutive naturals, for example, 248552 + ... + 319167.

It is an arithmetic number, because the mean of its divisors is an integer number (908730480).

Almost surely, 2^20045022452 is an apocalyptic number.

It is an amenable number.

20045022452 is an abundant number, since it is smaller than the sum of its proper divisors (23574040588).

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

20045022452 is a wasteful number, since it uses less digits than its factorization.

20045022452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567840 (or 567838 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

Adding to 20045022452 its reverse (25422054002), we get a palindrome (45467076454).

The spelling of 20045022452 in words is "twenty billion, forty-five million, twenty-two thousand, four hundred fifty-two".