38211172 has 24 divisors (see below), whose sum is σ = 71868384. Its totient is φ = 17711232.

The previous prime is 38211163. The next prime is 38211179. The reversal of 38211172 is 27111283.

It is a happy number.

It is a super-2 number, since 2×38211172² = 2920187331227168, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38211179) by changing a digit.

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, 363 + ... + 8749.

It is an arithmetic number, because the mean of its divisors is an integer number (2994516).

Almost surely, 2^38211172 is an apocalyptic number.

It is an amenable number.

38211172 is a deficient number, since it is larger than the sum of its proper divisors (33657212).

38211172 is a wasteful number, since it uses less digits than its factorization.

38211172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8475 (or 8473 counting only the distinct ones).

The product of its digits is 672, while the sum is 25.

The square root of 38211172 is about 6181.5185836492. The cubic root of 38211172 is about 336.8191582281.

It can be divided in two parts, 38211 and 172, that added together give a palindrome (38383).

The spelling of 38211172 in words is "thirty-eight million, two hundred eleven thousand, one hundred seventy-two".