38835220 has 24 divisors (see below), whose sum is σ = 83094984. Its totient is φ = 15240576.

The previous prime is 38835217. The next prime is 38835229. The reversal of 38835220 is 2253883.

It can be written as a sum of positive squares in 4 ways, for example, as 4892944 + 33942276 = 2212^2 + 5826^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38835229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17259 + ... + 19378.

It is an arithmetic number, because the mean of its divisors is an integer number (3462291).

Almost surely, 2^38835220 is an apocalyptic number.

It is an amenable number.

38835220 is an abundant number, since it is smaller than the sum of its proper divisors (44259764).

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

38835220 is a wasteful number, since it uses less digits than its factorization.

38835220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36699 (or 36697 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 38835220 is about 6231.7910748035. The cubic root of 38835220 is about 338.6428599595.

The spelling of 38835220 in words is "thirty-eight million, eight hundred thirty-five thousand, two hundred twenty".