30495985 has 8 divisors (see below), whose sum is σ = 39410280. Its totient is φ = 22520064.

The previous prime is 30495967. The next prime is 30496027. The reversal of 30495985 is 58959403.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1292769 + 29203216 = 1137^2 + 5404^2 .

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 30495985 - 2²¹ = 28398833 is a prime.

It is a super-2 number, since 2×30495985² = 1860010202240450, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234520 + ... + 234649.

It is an arithmetic number, because the mean of its divisors is an integer number (4926285).

Almost surely, 2^30495985 is an apocalyptic number.

It is an amenable number.

30495985 is a deficient number, since it is larger than the sum of its proper divisors (8914295).

30495985 is a wasteful number, since it uses less digits than its factorization.

30495985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469187.

The product of its (nonzero) digits is 194400, while the sum is 43.

The square root of 30495985 is about 5522.3169956097. The cubic root of 30495985 is about 312.4262780763.

The spelling of 30495985 in words is "thirty million, four hundred ninety-five thousand, nine hundred eighty-five".