39730385 has 8 divisors (see below), whose sum is σ = 47743080. Its totient is φ = 31739904.

The previous prime is 39730373. The next prime is 39730417. The reversal of 39730385 is 58303793.

It can be written as a sum of positive squares in 4 ways, for example, as 5764801 + 33965584 = 2401^2 + 5828^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 39730385 - 2¹⁴ = 39714001 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1322 + ... + 9011.

It is an arithmetic number, because the mean of its divisors is an integer number (5967885).

Almost surely, 2^39730385 is an apocalyptic number.

It is an amenable number.

39730385 is a deficient number, since it is larger than the sum of its proper divisors (8012695).

39730385 is a wasteful number, since it uses less digits than its factorization.

39730385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11107.

The product of its (nonzero) digits is 68040, while the sum is 38.

The square root of 39730385 is about 6303.2043438239. The cubic root of 39730385 is about 341.2250644833.

The spelling of 39730385 in words is "thirty-nine million, seven hundred thirty thousand, three hundred eighty-five".