20282028400 has 60 divisors (see below), whose sum is σ = 48946297792. Its totient is φ = 8076395520.

The previous prime is 20282028353. The next prime is 20282028427. The reversal of 20282028400 is 482028202.

It is a super-2 number, since 2×20282028400² (a number of 21 digits) contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 24489 + ... + 202888.

Almost surely, 2^20282028400 is an apocalyptic number.

20282028400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20282028400 is an abundant number, since it is smaller than the sum of its proper divisors (28664269392).

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

20282028400 is a wasteful number, since it uses less digits than its factorization.

20282028400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227618 (or 227607 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 28.

The spelling of 20282028400 in words is "twenty billion, two hundred eighty-two million, twenty-eight thousand, four hundred".