428211936 has 36 divisors (see below), whose sum is σ = 1217728512. Its totient is φ = 142737216.

The previous prime is 428211923. The next prime is 428211943. The reversal of 428211936 is 639112824.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 428211936.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 743136 + ... + 743711.

It is an arithmetic number, because the mean of its divisors is an integer number (33825792).

Almost surely, 2^428211936 is an apocalyptic number.

It is an amenable number.

428211936 is an abundant number, since it is smaller than the sum of its proper divisors (789516576).

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

428211936 is a wasteful number, since it uses less digits than its factorization.

428211936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1486863 (or 1486852 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 428211936 is about 20693.2823882534. The cubic root of 428211936 is about 753.7365744331.

The spelling of 428211936 in words is "four hundred twenty-eight million, two hundred eleven thousand, nine hundred thirty-six".