30494955 has 16 divisors (see below), whose sum is σ = 49927680. Its totient is φ = 15885408.

The previous prime is 30494951. The next prime is 30494969. The reversal of 30494955 is 55949403.

It is not a de Polignac number, because 30494955 - 2² = 30494951 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30494951) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 22995 + ... + 24284.

It is an arithmetic number, because the mean of its divisors is an integer number (3120480).

Almost surely, 2^30494955 is an apocalyptic number.

30494955 is a deficient number, since it is larger than the sum of its proper divisors (19432725).

30494955 is a wasteful number, since it uses less digits than its factorization.

30494955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47330.

The product of its (nonzero) digits is 97200, while the sum is 39.

The square root of 30494955 is about 5522.2237368654. The cubic root of 30494955 is about 312.4227606440.

It can be divided in two parts, 304 and 94955, that added together give a palindrome (95259).

The spelling of 30494955 in words is "thirty million, four hundred ninety-four thousand, nine hundred fifty-five".