428773842 has 24 divisors (see below), whose sum is σ = 1061726016. Its totient is φ = 122506776.

The previous prime is 428773841. The next prime is 428773861. The reversal of 428773842 is 248377824.

It is not an unprimeable number, because it can be changed into a prime (428773841) 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, 1701358 + ... + 1701609.

It is an arithmetic number, because the mean of its divisors is an integer number (44238584).

Almost surely, 2^428773842 is an apocalyptic number.

428773842 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

428773842 is an abundant number, since it is smaller than the sum of its proper divisors (632952174).

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

428773842 is a wasteful number, since it uses less digits than its factorization.

428773842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3402982 (or 3402979 counting only the distinct ones).

The product of its digits is 602112, while the sum is 45.

The square root of 428773842 is about 20706.8549519235. The cubic root of 428773842 is about 754.0661184036.

The spelling of 428773842 in words is "four hundred twenty-eight million, seven hundred seventy-three thousand, eight hundred forty-two".