20140204400 has 60 divisors (see below), whose sum is σ = 48558092232. Its totient is φ = 8027569920.

The previous prime is 20140204397. The next prime is 20140204451. The reversal of 20140204400 is 440204102.

It is a congruent number.

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, 24242 + ... + 202158.

Almost surely, 2^20140204400 is an apocalyptic number.

20140204400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20140204400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24279046116).

20140204400 is an abundant number, since it is smaller than the sum of its proper divisors (28417887832).

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

20140204400 is a wasteful number, since it uses less digits than its factorization.

20140204400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178218 (or 178207 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 20140204400 its reverse (440204102), we get a palindrome (20580408502).

The spelling of 20140204400 in words is "twenty billion, one hundred forty million, two hundred four thousand, four hundred".