30695530 has 16 divisors (see below), whose sum is σ = 55346184. Its totient is φ = 12257280.

The previous prime is 30695503. The next prime is 30695537. The reversal of 30695530 is 3559603.

It can be written as a sum of positive squares in 4 ways, for example, as 19864849 + 10830681 = 4457^2 + 3291^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30695492 and 30695501.

It is not an unprimeable number, because it can be changed into a prime (30695537) 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 7 ways as a sum of consecutive naturals, for example, 4450 + ... + 9010.

Almost surely, 2^30695530 is an apocalyptic number.

30695530 is a deficient number, since it is larger than the sum of its proper divisors (24650654).

30695530 is a wasteful number, since it uses less digits than its factorization.

30695530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5241.

The product of its (nonzero) digits is 12150, while the sum is 31.

The square root of 30695530 is about 5540.3546817871. The cubic root of 30695530 is about 313.1062322500.

The spelling of 30695530 in words is "thirty million, six hundred ninety-five thousand, five hundred thirty".