428103732 has 24 divisors (see below), whose sum is σ = 1141610176. Its totient is φ = 122315328.

The previous prime is 428103721. The next prime is 428103749. The reversal of 428103732 is 237301824.

It is a self number, because there is not a number n which added to its sum of digits gives 428103732.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2548153 + ... + 2548320.

Almost surely, 2^428103732 is an apocalyptic number.

428103732 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

428103732 is an abundant number, since it is smaller than the sum of its proper divisors (713506444).

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

428103732 is a wasteful number, since it uses less digits than its factorization.

428103732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5096487 (or 5096485 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 428103732 is about 20690.6677514284. The cubic root of 428103732 is about 753.6730823661.

The spelling of 428103732 in words is "four hundred twenty-eight million, one hundred three thousand, seven hundred thirty-two".