428359638 has 32 divisors (see below), whose sum is σ = 1012872960. Its totient is φ = 118167840.

The previous prime is 428359637. The next prime is 428359691. The reversal of 428359638 is 836953824.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428359637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174628 + ... + 177063.

It is an arithmetic number, because the mean of its divisors is an integer number (31652280).

Almost surely, 2^428359638 is an apocalyptic number.

428359638 is an abundant number, since it is smaller than the sum of its proper divisors (584513322).

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

428359638 is a wasteful number, since it uses less digits than its factorization.

428359638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351732.

The product of its digits is 1244160, while the sum is 48.

The square root of 428359638 is about 20696.8509198863. The cubic root of 428359638 is about 753.8232259192.

The spelling of 428359638 in words is "four hundred twenty-eight million, three hundred fifty-nine thousand, six hundred thirty-eight".