842080400 has 60 divisors (see below), whose sum is σ = 2312119872. Its totient is φ = 288712320.

The previous prime is 842080381. The next prime is 842080409. The reversal of 842080400 is 4080248.

It is a self number, because there is not a number n which added to its sum of digits gives 842080400.

It is not an unprimeable number, because it can be changed into a prime (842080409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 147572 + ... + 153171.

Almost surely, 2^842080400 is an apocalyptic number.

842080400 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

842080400 is an abundant number, since it is smaller than the sum of its proper divisors (1470039472).

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

842080400 is a wasteful number, since it uses less digits than its factorization.

842080400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300768 (or 300757 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 842080400 is about 29018.6216075126. The cubic root of 842080400 is about 944.3170975803.

The spelling of 842080400 in words is "eight hundred forty-two million, eighty thousand, four hundred".