38956220 has 12 divisors (see below), whose sum is σ = 81808104. Its totient is φ = 15582480.

The previous prime is 38956201. The next prime is 38956223. The reversal of 38956220 is 2265983.

38956220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38956223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 973886 + ... + 973925.

It is an arithmetic number, because the mean of its divisors is an integer number (6817342).

Almost surely, 2^38956220 is an apocalyptic number.

It is an amenable number.

38956220 is an abundant number, since it is smaller than the sum of its proper divisors (42851884).

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

38956220 is a wasteful number, since it uses less digits than its factorization.

38956220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1947820 (or 1947818 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 38956220 is about 6241.4918088547. The cubic root of 38956220 is about 338.9942017148.

The spelling of 38956220 in words is "thirty-eight million, nine hundred fifty-six thousand, two hundred twenty".