38670220 has 12 divisors (see below), whose sum is σ = 81207504. Its totient is φ = 15468080.

The previous prime is 38670197. The next prime is 38670227. The reversal of 38670220 is 2207683.

It is not an unprimeable number, because it can be changed into a prime (38670227) 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, 966736 + ... + 966775.

It is an arithmetic number, because the mean of its divisors is an integer number (6767292).

Almost surely, 2^38670220 is an apocalyptic number.

It is an amenable number.

38670220 is an abundant number, since it is smaller than the sum of its proper divisors (42537284).

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

38670220 is a wasteful number, since it uses less digits than its factorization.

38670220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1933520 (or 1933518 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 38670220 is about 6218.5384134859. The cubic root of 38670220 is about 338.1625794894.

The spelling of 38670220 in words is "thirty-eight million, six hundred seventy thousand, two hundred twenty".