842339280 has 80 divisors (see below), whose sum is σ = 2614457664. Its totient is φ = 224348160.

The previous prime is 842339263. The next prime is 842339287. The reversal of 842339280 is 82933248.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842339287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 260232 + ... + 263448.

Almost surely, 2^842339280 is an apocalyptic number.

842339280 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

842339280 is an abundant number, since it is smaller than the sum of its proper divisors (1772118384).

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

842339280 is a wasteful number, since it uses less digits than its factorization.

842339280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4324 (or 4318 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 842339280 is about 29023.0818487631. The cubic root of 842339280 is about 944.4138578432.

The spelling of 842339280 in words is "eight hundred forty-two million, three hundred thirty-nine thousand, two hundred eighty".