428038436 has 12 divisors (see below), whose sum is σ = 856076928. Its totient is φ = 183445032.

The previous prime is 428038417. The next prime is 428038477. The reversal of 428038436 is 634830824.

428038436 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 428038436.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7643516 + ... + 7643571.

It is an arithmetic number, because the mean of its divisors is an integer number (71339744).

Almost surely, 2^428038436 is an apocalyptic number.

It is an amenable number.

428038436 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

428038436 is a wasteful number, since it uses less digits than its factorization.

428038436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15287098 (or 15287096 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 38.

The square root of 428038436 is about 20689.0897818150. The cubic root of 428038436 is about 753.6347627284.

The spelling of 428038436 in words is "four hundred twenty-eight million, thirty-eight thousand, four hundred thirty-six".