38228320 has 48 divisors (see below), whose sum is σ = 97266960. Its totient is φ = 14114304.

The previous prime is 38228299. The next prime is 38228341. The reversal of 38228320 is 2382283.

It is an interprime number because it is at equal distance from previous prime (38228299) and next prime (38228341).

It is a super-2 number, since 2×38228320² = 2922808900044800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7110 + ... + 11269.

It is an arithmetic number, because the mean of its divisors is an integer number (2026395).

Almost surely, 2^38228320 is an apocalyptic number.

It is an amenable number.

38228320 is an abundant number, since it is smaller than the sum of its proper divisors (59038640).

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

38228320 is a wasteful number, since it uses less digits than its factorization.

38228320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18407 (or 18399 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 38228320 is about 6182.9054658793. The cubic root of 38228320 is about 336.8695353896.

The spelling of 38228320 in words is "thirty-eight million, two hundred twenty-eight thousand, three hundred twenty".