38320428 has 18 divisors (see below), whose sum is σ = 89464396. Its totient is φ = 12766328.

The previous prime is 38320427. The next prime is 38320453. The reversal of 38320428 is 82402383.

It is a junction number, because it is equal to n+sod(n) for n = 38320395 and 38320404.

It is not an unprimeable number, because it can be changed into a prime (38320423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20551 + ... + 22337.

Almost surely, 2^38320428 is an apocalyptic number.

It is an amenable number.

38320428 is an abundant number, since it is smaller than the sum of its proper divisors (51143968).

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

38320428 is an equidigital number, since it uses as much as digits as its factorization.

38320428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3581 (or 1792 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 38320428 is about 6190.3495862512. The cubic root of 38320428 is about 337.1398715553.

The spelling of 38320428 in words is "thirty-eight million, three hundred twenty thousand, four hundred twenty-eight".