30196538 has 16 divisors (see below), whose sum is σ = 46576296. Its totient is φ = 14676480.

The previous prime is 30196519. The next prime is 30196547. The reversal of 30196538 is 83569103.

It can be written as a sum of positive squares in 4 ways, for example, as 9284209 + 20912329 = 3047^2 + 4573^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30196498 and 30196507.

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 in 7 ways as a sum of consecutive naturals, for example, 10718 + ... + 13238.

Almost surely, 2^30196538 is an apocalyptic number.

30196538 is a deficient number, since it is larger than the sum of its proper divisors (16379758).

30196538 is a wasteful number, since it uses less digits than its factorization.

30196538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2689.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 30196538 is about 5495.1376688851. The cubic root of 30196538 is about 311.4003178163.

The spelling of 30196538 in words is "thirty million, one hundred ninety-six thousand, five hundred thirty-eight".