30390995 has 16 divisors (see below), whose sum is σ = 37690272. Its totient is φ = 23512320.

The previous prime is 30390991. The next prime is 30391003. The reversal of 30390995 is 59909303.

It is not a de Polignac number, because 30390995 - 2² = 30390991 is a prime.

It is a super-2 number, since 2×30390995² = 1847225154180050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30390991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18560 + ... + 20130.

It is an arithmetic number, because the mean of its divisors is an integer number (2355642).

Almost surely, 2^30390995 is an apocalyptic number.

30390995 is a deficient number, since it is larger than the sum of its proper divisors (7299277).

30390995 is a wasteful number, since it uses less digits than its factorization.

30390995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1702.

The product of its (nonzero) digits is 32805, while the sum is 38.

The square root of 30390995 is about 5512.8028261493. The cubic root of 30390995 is about 312.0673308281.

The spelling of 30390995 in words is "thirty million, three hundred ninety thousand, nine hundred ninety-five".