20004125400 has 144 divisors (see below), whose sum is σ = 76777786800. Its totient is φ = 4572368640.

The previous prime is 20004125371. The next prime is 20004125497. The reversal of 20004125400 is 452140002.

20004125400 is a `hidden beast` number, since 200 + 0 + 41 + 25 + 400 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 35 ways as a sum of consecutive naturals, for example, 781215 + ... + 806414.

It is an arithmetic number, because the mean of its divisors is an integer number (533179075).

Almost surely, 2^20004125400 is an apocalyptic number.

20004125400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20004125400 is an abundant number, since it is smaller than the sum of its proper divisors (56773661400).

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

20004125400 is a wasteful number, since it uses less digits than its factorization.

20004125400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1587658 (or 1587646 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

Adding to 20004125400 its reverse (452140002), we get a palindrome (20456265402).

The spelling of 20004125400 in words is "twenty billion, four million, one hundred twenty-five thousand, four hundred".