30949538 has 16 divisors (see below), whose sum is σ = 48263040. Its totient is φ = 14872176.

The previous prime is 30949517. The next prime is 30949549. The reversal of 30949538 is 83594903.

It is a junction number, because it is equal to n+sod(n) for n = 30949495 and 30949504.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3623 + ... + 8661.

It is an arithmetic number, because the mean of its divisors is an integer number (3016440).

Almost surely, 2^30949538 is an apocalyptic number.

30949538 is a deficient number, since it is larger than the sum of its proper divisors (17313502).

30949538 is a wasteful number, since it uses less digits than its factorization.

30949538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5161.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 30949538 is about 5563.2308958015. The cubic root of 30949538 is about 313.9675206780.

The spelling of 30949538 in words is "thirty million, nine hundred forty-nine thousand, five hundred thirty-eight".