840880000400 has 60 divisors (see below), whose sum is σ = 2203870048944. Its totient is φ = 305774544000.

The previous prime is 840880000399. The next prime is 840880000403. The reversal of 840880000400 is 4000088048.

It is not an unprimeable number, because it can be changed into a prime (840880000403) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 95550146 + ... + 95558945.

Almost surely, 2^840880000400 is an apocalyptic number.

840880000400 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

840880000400 is an abundant number, since it is smaller than the sum of its proper divisors (1362990048544).

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

840880000400 is a wasteful number, since it uses less digits than its factorization.

840880000400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191109120 (or 191109109 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 32.

Adding to 840880000400 its reverse (4000088048), we get a palindrome (844880088448).

The spelling of 840880000400 in words is "eight hundred forty billion, eight hundred eighty million, four hundred", and thus it is an aban number.