842550428 has 12 divisors (see below), whose sum is σ = 1508753400. Its totient is φ = 411478032.

The previous prime is 842550409. The next prime is 842550431. The reversal of 842550428 is 824055248.

It is a junction number, because it is equal to n+sod(n) for n = 842550391 and 842550400.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2449103 + ... + 2449446.

It is an arithmetic number, because the mean of its divisors is an integer number (125729450).

Almost surely, 2^842550428 is an apocalyptic number.

It is an amenable number.

842550428 is a deficient number, since it is larger than the sum of its proper divisors (666202972).

842550428 is a wasteful number, since it uses less digits than its factorization.

842550428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4898596 (or 4898594 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 38.

The square root of 842550428 is about 29026.7192083432. The cubic root of 842550428 is about 944.4927628808.

The spelling of 842550428 in words is "eight hundred forty-two million, five hundred fifty thousand, four hundred twenty-eight".