428574040 has 32 divisors (see below), whose sum is σ = 965000880. Its totient is φ = 171303552.

The previous prime is 428574037. The next prime is 428574049. The reversal of 428574040 is 40475824.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 428573987 and 428574005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428574049) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 66814 + ... + 72946.

Almost surely, 2^428574040 is an apocalyptic number.

428574040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

428574040 is an abundant number, since it is smaller than the sum of its proper divisors (536426840).

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

428574040 is a wasteful number, since it uses less digits than its factorization.

428574040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7891 (or 7887 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 34.

The square root of 428574040 is about 20702.0298521667. The cubic root of 428574040 is about 753.9489724771.

The spelling of 428574040 in words is "four hundred twenty-eight million, five hundred seventy-four thousand, forty".