428235736 has 16 divisors (see below), whose sum is σ = 828843840. Its totient is φ = 207210720.

The previous prime is 428235733. The next prime is 428235749. The reversal of 428235736 is 637532824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428235733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 863131 + ... + 863626.

It is an arithmetic number, because the mean of its divisors is an integer number (51802740).

Almost surely, 2^428235736 is an apocalyptic number.

It is an amenable number.

428235736 is a deficient number, since it is larger than the sum of its proper divisors (400608104).

428235736 is a wasteful number, since it uses less digits than its factorization.

428235736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1726794 (or 1726790 counting only the distinct ones).

The product of its digits is 241920, while the sum is 40.

The square root of 428235736 is about 20693.8574461119. The cubic root of 428235736 is about 753.7505383893.

The spelling of 428235736 in words is "four hundred twenty-eight million, two hundred thirty-five thousand, seven hundred thirty-six".