200040020400 has 120 divisors (see below), whose sum is σ = 699048990144. Its totient is φ = 48494547200.

The previous prime is 200040020399. The next prime is 200040020419. The reversal of 200040020400 is 4020040002.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

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, 7564074 + ... + 7590473.

Almost surely, 2^200040020400 is an apocalyptic number.

200040020400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200040020400 is an abundant number, since it is smaller than the sum of its proper divisors (499008969744).

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

200040020400 is a wasteful number, since it uses less digits than its factorization.

200040020400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15154579 (or 15154568 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

Adding to 200040020400 its reverse (4020040002), we get a palindrome (204060060402).

The spelling of 200040020400 in words is "two hundred billion, forty million, twenty thousand, four hundred".