39530690 has 16 divisors (see below), whose sum is σ = 71265528. Its totient is φ = 15787776.

The previous prime is 39530669. The next prime is 39530719. The reversal of 39530690 is 9603593.

It can be written as a sum of positive squares in 4 ways, for example, as 38775529 + 755161 = 6227^2 + 869^2 .

It is a super-2 number, since 2×39530690² = 3125350903752200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 39530690.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4634 + ... + 10026.

Almost surely, 2^39530690 is an apocalyptic number.

39530690 is a deficient number, since it is larger than the sum of its proper divisors (31734838).

39530690 is a wasteful number, since it uses less digits than its factorization.

39530690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6133.

The product of its (nonzero) digits is 21870, while the sum is 35.

The square root of 39530690 is about 6287.3436362267. The cubic root of 39530690 is about 340.6524093759.

The spelling of 39530690 in words is "thirty-nine million, five hundred thirty thousand, six hundred ninety".