20000042143400 has 48 divisors (see below), whose sum is σ = 50727379623840. Its totient is φ = 7272742596800.

The previous prime is 20000042143363. The next prime is 20000042143427. The reversal of 20000042143400 is 434124000002.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4545461924 + ... + 4545466323.

It is an arithmetic number, because the mean of its divisors is an integer number (1056820408830).

Almost surely, 2^{20000042143400} is an apocalyptic number.

20000042143400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20000042143400 is an abundant number, since it is smaller than the sum of its proper divisors (30727337480440).

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

20000042143400 is a wasteful number, since it uses less digits than its factorization.

20000042143400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9090928274 (or 9090928265 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 20000042143400 its reverse (434124000002), we get a palindrome (20434166143402).

The spelling of 20000042143400 in words is "twenty trillion, forty-two million, one hundred forty-three thousand, four hundred".