842468840 has 32 divisors (see below), whose sum is σ = 1977972480. Its totient is φ = 322335552.

The previous prime is 842468819. The next prime is 842468933. The reversal of 842468840 is 48864248.

It is a happy number.

842468840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 842468791 and 842468800.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 456944 + ... + 458783.

It is an arithmetic number, because the mean of its divisors is an integer number (61811640).

Almost surely, 2^842468840 is an apocalyptic number.

It is an amenable number.

842468840 is an abundant number, since it is smaller than the sum of its proper divisors (1135503640).

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

842468840 is a wasteful number, since it uses less digits than its factorization.

842468840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915761 (or 915757 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 44.

The square root of 842468840 is about 29025.3137795270. The cubic root of 842468840 is about 944.4622753829.

The spelling of 842468840 in words is "eight hundred forty-two million, four hundred sixty-eight thousand, eight hundred forty".