428641596 has 72 divisors (see below), whose sum is σ = 1171432080. Its totient is φ = 131694336.

The previous prime is 428641579. The next prime is 428641649. The reversal of 428641596 is 695146824.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16840 + ... + 33776.

It is an arithmetic number, because the mean of its divisors is an integer number (16269890).

Almost surely, 2^428641596 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 428641596, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (585716040).

428641596 is an abundant number, since it is smaller than the sum of its proper divisors (742790484).

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

428641596 is a wasteful number, since it uses less digits than its factorization.

428641596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17003 (or 16998 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 428641596 is about 20703.6614153149. The cubic root of 428641596 is about 753.9885853141.

The spelling of 428641596 in words is "four hundred twenty-eight million, six hundred forty-one thousand, five hundred ninety-six".