20054042400 has 144 divisors (see below), whose sum is σ = 74601100224. Its totient is φ = 4583777280.

The previous prime is 20054042389. The next prime is 20054042413. The reversal of 20054042400 is 424045002.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 580047 + ... + 613646.

It is an arithmetic number, because the mean of its divisors is an integer number (518063196).

Almost surely, 2^20054042400 is an apocalyptic number.

20054042400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20054042400 is an abundant number, since it is smaller than the sum of its proper divisors (54547057824).

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

20054042400 is a wasteful number, since it uses less digits than its factorization.

20054042400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193723 (or 1193710 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

Adding to 20054042400 its reverse (424045002), we get a palindrome (20478087402).

The spelling of 20054042400 in words is "twenty billion, fifty-four million, forty-two thousand, four hundred".