428109752 has 32 divisors (see below), whose sum is σ = 946974720. Its totient is φ = 177556320.

The previous prime is 428109743. The next prime is 428109757. The reversal of 428109752 is 257901824.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428109757) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121568 + ... + 125039.

It is an arithmetic number, because the mean of its divisors is an integer number (29592960).

Almost surely, 2^428109752 is an apocalyptic number.

It is an amenable number.

428109752 is an abundant number, since it is smaller than the sum of its proper divisors (518864968).

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

428109752 is a wasteful number, since it uses less digits than its factorization.

428109752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246651 (or 246647 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 428109752 is about 20690.8132271305. The cubic root of 428109752 is about 753.6766150696.

The spelling of 428109752 in words is "four hundred twenty-eight million, one hundred nine thousand, seven hundred fifty-two".