38210066 has 4 divisors (see below), whose sum is σ = 57315102. Its totient is φ = 19105032.

The previous prime is 38210063. The next prime is 38210069. The reversal of 38210066 is 66001283.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66001283 = 23 ⋅2869621.

It is an interprime number because it is at equal distance from previous prime (38210063) and next prime (38210069).

It can be written as a sum of positive squares in only one way, i.e., 37884025 + 326041 = 6155^2 + 571^2 .

It is a super-3 number, since 3×38210066³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (38210063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9552515 + ... + 9552518.

Almost surely, 2^38210066 is an apocalyptic number.

38210066 is a deficient number, since it is larger than the sum of its proper divisors (19105036).

38210066 is a wasteful number, since it uses less digits than its factorization.

38210066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19105035.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 38210066 is about 6181.4291227838. The cubic root of 38210066 is about 336.8159085190.

The spelling of 38210066 in words is "thirty-eight million, two hundred ten thousand, sixty-six".