428454812 has 24 divisors (see below), whose sum is σ = 761683776. Its totient is φ = 210843648.

The previous prime is 428454737. The next prime is 428454913. The reversal of 428454812 is 218454824.

It is a congruent number.

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, 167213 + ... + 169755.

It is an arithmetic number, because the mean of its divisors is an integer number (31736824).

Almost surely, 2^428454812 is an apocalyptic number.

It is an amenable number.

428454812 is a deficient number, since it is larger than the sum of its proper divisors (333228964).

428454812 is a wasteful number, since it uses less digits than its factorization.

428454812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3197 (or 3195 counting only the distinct ones).

The product of its digits is 81920, while the sum is 38.

The square root of 428454812 is about 20699.1500308588. The cubic root of 428454812 is about 753.8790505524.

The spelling of 428454812 in words is "four hundred twenty-eight million, four hundred fifty-four thousand, eight hundred twelve".