38733220 has 24 divisors (see below), whose sum is σ = 81535608. Its totient is φ = 15456000.

The previous prime is 38733199. The next prime is 38733271. The reversal of 38733220 is 2233783.

It can be written as a sum of positive squares in 4 ways, for example, as 69696 + 38663524 = 264^2 + 6218^2 .

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7120 + ... + 11320.

It is an arithmetic number, because the mean of its divisors is an integer number (3397317).

Almost surely, 2^38733220 is an apocalyptic number.

It is an amenable number.

38733220 is an abundant number, since it is smaller than the sum of its proper divisors (42802388).

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

38733220 is a wasteful number, since it uses less digits than its factorization.

38733220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4671 (or 4669 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 38733220 is about 6223.6018510184. The cubic root of 38733220 is about 338.3461202401.

The spelling of 38733220 in words is "thirty-eight million, seven hundred thirty-three thousand, two hundred twenty".