38223520 has 24 divisors (see below), whose sum is σ = 90303444. Its totient is φ = 15289344.

The previous prime is 38223511. The next prime is 38223533. The reversal of 38223520 is 2532283.

It can be written as a sum of positive squares in 2 ways, for example, as 37896336 + 327184 = 6156^2 + 572^2 .

It is a super-2 number, since 2×38223520² = 2922074962380800, which contains 22 as substring.

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, 119289 + ... + 119608.

Almost surely, 2^38223520 is an apocalyptic number.

It is an amenable number.

38223520 is an abundant number, since it is smaller than the sum of its proper divisors (52079924).

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

38223520 is a wasteful number, since it uses less digits than its factorization.

38223520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238912 (or 238904 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 38223520 is about 6182.5172866722. The cubic root of 38223520 is about 336.8554355333.

The spelling of 38223520 in words is "thirty-eight million, two hundred twenty-three thousand, five hundred twenty".