39228081 has 8 divisors (see below), whose sum is σ = 52703904. Its totient is φ = 25952160.

The previous prime is 39228073. The next prime is 39228089. The reversal of 39228081 is 18082293.

It is an interprime number because it is at equal distance from previous prime (39228073) and next prime (39228089).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 39228081 - 2³ = 39228073 is a prime.

It is a super-2 number, since 2×39228081² = 3077684677885122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (39228089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49516 + ... + 50301.

It is an arithmetic number, because the mean of its divisors is an integer number (6587988).

Almost surely, 2^39228081 is an apocalyptic number.

It is an amenable number.

39228081 is a deficient number, since it is larger than the sum of its proper divisors (13475823).

39228081 is a wasteful number, since it uses less digits than its factorization.

39228081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99951.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 39228081 is about 6263.2324721345. The cubic root of 39228081 is about 339.7809459808.

The spelling of 39228081 in words is "thirty-nine million, two hundred twenty-eight thousand, eighty-one".