38182220 has 12 divisors (see below), whose sum is σ = 80182704. Its totient is φ = 15272880.

The previous prime is 38182219. The next prime is 38182223. The reversal of 38182220 is 2228183.

It is a self number, because there is not a number n which added to its sum of digits gives 38182220.

It is not an unprimeable number, because it can be changed into a prime (38182223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 954536 + ... + 954575.

It is an arithmetic number, because the mean of its divisors is an integer number (6681892).

Almost surely, 2^38182220 is an apocalyptic number.

It is an amenable number.

38182220 is an abundant number, since it is smaller than the sum of its proper divisors (42000484).

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

38182220 is a wasteful number, since it uses less digits than its factorization.

38182220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1909120 (or 1909118 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 38182220 is about 6179.1763205139. The cubic root of 38182220 is about 336.7340692199.

The spelling of 38182220 in words is "thirty-eight million, one hundred eighty-two thousand, two hundred twenty".