30890246 has 4 divisors (see below), whose sum is σ = 46335372. Its totient is φ = 15445122.

The previous prime is 30890213. The next prime is 30890281. The reversal of 30890246 is 64209803.

It is a semiprime because it is the product of two primes.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 7722560 + ... + 7722563.

It is an arithmetic number, because the mean of its divisors is an integer number (11583843).

Almost surely, 2^30890246 is an apocalyptic number.

30890246 is a deficient number, since it is larger than the sum of its proper divisors (15445126).

30890246 is a wasteful number, since it uses less digits than its factorization.

30890246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15445125.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 30890246 is about 5557.8994233433. The cubic root of 30890246 is about 313.7668966525.

The spelling of 30890246 in words is "thirty million, eight hundred ninety thousand, two hundred forty-six".