20000270400 has 168 divisors, whose sum is σ = 71582974944. Its totient is φ = 4848537600.

The previous prime is 20000270399. The next prime is 20000270401. The reversal of 20000270400 is 407200002.

It is an interprime number because it is at equal distance from previous prime (20000270399) and next prime (20000270401).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20000270400.

It is not an unprimeable number, because it can be changed into a prime (20000270401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 136597 + ... + 242196.

Almost surely, 2^20000270400 is an apocalyptic number.

20000270400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20000270400 is an abundant number, since it is smaller than the sum of its proper divisors (51582704544).

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

20000270400 is a wasteful number, since it uses less digits than its factorization.

20000270400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378829 (or 378814 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 15.

Adding to 20000270400 its reverse (407200002), we get a palindrome (20407470402).

The spelling of 20000270400 in words is "twenty billion, two hundred seventy thousand, four hundred".