30494957 has 8 divisors (see below), whose sum is σ = 32623416. Its totient is φ = 28403712.

The previous prime is 30494951. The next prime is 30494969. The reversal of 30494957 is 75949403.

It can be written as a sum of positive squares in 4 ways, for example, as 6180196 + 24314761 = 2486^2 + 4931^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30494957 - 2¹⁰ = 30493933 is a prime.

It is a Duffinian 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, 7598 + ... + 10895.

It is an arithmetic number, because the mean of its divisors is an integer number (4077927).

Almost surely, 2^30494957 is an apocalyptic number.

It is an amenable number.

30494957 is a deficient number, since it is larger than the sum of its proper divisors (2128459).

30494957 is a wasteful number, since it uses less digits than its factorization.

30494957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18607.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 30494957 is about 5522.2239179519. The cubic root of 30494957 is about 312.4227674740.

The spelling of 30494957 in words is "thirty million, four hundred ninety-four thousand, nine hundred fifty-seven".