30409085 has 16 divisors (see below), whose sum is σ = 42723072. Its totient is φ = 20342400.

The previous prime is 30409061. The next prime is 30409097. The reversal of 30409085 is 58090403.

It is not a de Polignac number, because 30409085 - 2¹⁶ = 30343549 is a prime.

It is a Curzon number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 9161 + ... + 12030.

It is an arithmetic number, because the mean of its divisors is an integer number (2670192).

Almost surely, 2^30409085 is an apocalyptic number.

30409085 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30409085 is a deficient number, since it is larger than the sum of its proper divisors (12313987).

30409085 is a wasteful number, since it uses less digits than its factorization.

30409085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21244.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 30409085 is about 5514.4433082588. The cubic root of 30409085 is about 312.1292370855.

Adding to 30409085 its reverse (58090403), we get a palindrome (88499488).

The spelling of 30409085 in words is "thirty million, four hundred nine thousand, eighty-five".