20028384546 has 16 divisors (see below), whose sum is σ = 40095558624. Its totient is φ = 6669663264.

The previous prime is 20028384451. The next prime is 20028384547. The reversal of 20028384546 is 64548382002.

It is a super-2 number, since 2×20028384546² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20028384498 and 20028384507.

It is not an unprimeable number, because it can be changed into a prime (20028384547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1609516 + ... + 1621911.

It is an arithmetic number, because the mean of its divisors is an integer number (2505972414).

Almost surely, 2^20028384546 is an apocalyptic number.

20028384546 is an abundant number, since it is smaller than the sum of its proper divisors (20067174078).

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

20028384546 is a wasteful number, since it uses less digits than its factorization.

20028384546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3232465.

The product of its (nonzero) digits is 368640, while the sum is 42.

The spelling of 20028384546 in words is "twenty billion, twenty-eight million, three hundred eighty-four thousand, five hundred forty-six".