38666214 has 32 divisors (see below), whose sum is σ = 86970240. Its totient is φ = 12731976.

The previous prime is 38666213. The next prime is 38666219. The reversal of 38666214 is 41266683.

It is a super-2 number, since 2×38666214² = 2990152210187592, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38666213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169 + ... + 8795.

It is an arithmetic number, because the mean of its divisors is an integer number (2717820).

Almost surely, 2^38666214 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38666214, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43485120).

38666214 is an abundant number, since it is smaller than the sum of its proper divisors (48304026).

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

38666214 is a wasteful number, since it uses less digits than its factorization.

38666214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8721 (or 8715 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 38666214 is about 6218.2163037321. The cubic root of 38666214 is about 338.1509018895.

The spelling of 38666214 in words is "thirty-eight million, six hundred sixty-six thousand, two hundred fourteen".