30390590 has 32 divisors (see below), whose sum is σ = 57430080. Its totient is φ = 11556864.

The previous prime is 30390539. The next prime is 30390629. The reversal of 30390590 is 9509303.

It is a congruent number.

It is an unprimeable number.

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, 52382 + ... + 52958.

It is an arithmetic number, because the mean of its divisors is an integer number (1794690).

Almost surely, 2^30390590 is an apocalyptic number.

30390590 is a deficient number, since it is larger than the sum of its proper divisors (27039490).

30390590 is a wasteful number, since it uses less digits than its factorization.

30390590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836.

The product of its (nonzero) digits is 3645, while the sum is 29.

The square root of 30390590 is about 5512.7660933510. The cubic root of 30390590 is about 312.0659445860.

Adding to 30390590 its reverse (9509303), we get a palindrome (39899893).

The spelling of 30390590 in words is "thirty million, three hundred ninety thousand, five hundred ninety".