842454988 has 24 divisors (see below), whose sum is σ = 1526943600. Its totient is φ = 406219968.

The previous prime is 842454983. The next prime is 842454997. The reversal of 842454988 is 889454248.

It is not an unprimeable number, because it can be changed into a prime (842454983) 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 7 ways as a sum of consecutive naturals, for example, 106018 + ... + 113686.

It is an arithmetic number, because the mean of its divisors is an integer number (63622650).

Almost surely, 2^842454988 is an apocalyptic number.

It is an amenable number.

842454988 is a deficient number, since it is larger than the sum of its proper divisors (684488612).

842454988 is a wasteful number, since it uses less digits than its factorization.

842454988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8649 (or 8647 counting only the distinct ones).

The product of its digits is 2949120, while the sum is 52.

The square root of 842454988 is about 29025.0751592481. The cubic root of 842454988 is about 944.4570990241.

The spelling of 842454988 in words is "eight hundred forty-two million, four hundred fifty-four thousand, nine hundred eighty-eight".