30949550 has 12 divisors (see below), whose sum is σ = 57566256. Its totient is φ = 12379800.

The previous prime is 30949549. The next prime is 30949553. The reversal of 30949550 is 5594903.

It is a self number, because there is not a number n which added to its sum of digits gives 30949550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30949553) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 309446 + ... + 309545.

It is an arithmetic number, because the mean of its divisors is an integer number (4797188).

Almost surely, 2^30949550 is an apocalyptic number.

30949550 is a deficient number, since it is larger than the sum of its proper divisors (26616706).

30949550 is a wasteful number, since it uses less digits than its factorization.

30949550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619003 (or 618998 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 35.

The square root of 30949550 is about 5563.2319743113. The cubic root of 30949550 is about 313.9675612560.

The spelling of 30949550 in words is "thirty million, nine hundred forty-nine thousand, five hundred fifty".