38428216 has 24 divisors (see below), whose sum is σ = 75350520. Its totient is φ = 18338496.

The previous prime is 38428183. The next prime is 38428223. The reversal of 38428216 is 61282483.

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, 83860 + ... + 84316.

It is an arithmetic number, because the mean of its divisors is an integer number (3139605).

Almost surely, 2^38428216 is an apocalyptic number.

It is an amenable number.

38428216 is a deficient number, since it is larger than the sum of its proper divisors (36922304).

38428216 is an equidigital number, since it uses as much as digits as its factorization.

38428216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943 (or 482 counting only the distinct ones).

The product of its digits is 18432, while the sum is 34.

The square root of 38428216 is about 6199.0496045765. The cubic root of 38428216 is about 337.4556788621.

The spelling of 38428216 in words is "thirty-eight million, four hundred twenty-eight thousand, two hundred sixteen".