30949798 has 16 divisors (see below), whose sum is σ = 51036480. Its totient is φ = 13959400.

The previous prime is 30949781. The next prime is 30949859. The reversal of 30949798 is 89794903.

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 7 ways as a sum of consecutive naturals, for example, 2488 + ... + 8251.

It is an arithmetic number, because the mean of its divisors is an integer number (3189780).

Almost surely, 2^30949798 is an apocalyptic number.

30949798 is a deficient number, since it is larger than the sum of its proper divisors (20086682).

30949798 is a wasteful number, since it uses less digits than its factorization.

30949798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10883.

The product of its (nonzero) digits is 489888, while the sum is 49.

The square root of 30949798 is about 5563.2542634685. The cubic root of 30949798 is about 313.9683998654.

The spelling of 30949798 in words is "thirty million, nine hundred forty-nine thousand, seven hundred ninety-eight".