30494958 has 16 divisors (see below), whose sum is σ = 65681616. Its totient is φ = 9383040.

The previous prime is 30494951. The next prime is 30494969. The reversal of 30494958 is 85949403.

It is a Curzon number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 195403 + ... + 195558.

It is an arithmetic number, because the mean of its divisors is an integer number (4105101).

Almost surely, 2^30494958 is an apocalyptic number.

30494958 is an abundant number, since it is smaller than the sum of its proper divisors (35186658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30494958 is a wasteful number, since it uses less digits than its factorization.

30494958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390979.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 30494958 is about 5522.2240084951. The cubic root of 30494958 is about 312.4227708890.

The spelling of 30494958 in words is "thirty million, four hundred ninety-four thousand, nine hundred fifty-eight".