39304085 has 8 divisors (see below), whose sum is σ = 49939416. Its totient is φ = 29593600.

The previous prime is 39304081. The next prime is 39304093. The reversal of 39304085 is 58040393.

It can be written as a sum of positive squares in 4 ways, for example, as 22600516 + 16703569 = 4754^2 + 4087^2 .

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

It is not a de Polignac number, because 39304085 - 2² = 39304081 is a prime.

It is a super-2 number, since 2×39304085² = 3089622195374450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39304081) 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, 231116 + ... + 231285.

It is an arithmetic number, because the mean of its divisors is an integer number (6242427).

Almost surely, 2^39304085 is an apocalyptic number.

It is an amenable number.

39304085 is a deficient number, since it is larger than the sum of its proper divisors (10635331).

39304085 is a wasteful number, since it uses less digits than its factorization.

39304085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462423.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 39304085 is about 6269.2970100323. The cubic root of 39304085 is about 340.0002450979. Note that the first 3 decimals are identical.

It can be divided in two parts, 393040 and 85, that multiplied together give a square (33408400 = 5780²).

The spelling of 39304085 in words is "thirty-nine million, three hundred four thousand, eighty-five".