30945349 has 8 divisors (see below), whose sum is σ = 32103000. Its totient is φ = 29793792.

The previous prime is 30945331. The next prime is 30945353. The reversal of 30945349 is 94354903.

It can be written as a sum of positive squares in 4 ways, for example, as 11009124 + 19936225 = 3318^2 + 4465^2 .

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 30945349 - 2⁷ = 30945221 is a prime.

It is a super-2 number, since 2×30945349² = 1915229249463602, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30945359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10557 + ... + 13165.

It is an arithmetic number, because the mean of its divisors is an integer number (4012875).

Almost surely, 2^30945349 is an apocalyptic number.

It is an amenable number.

30945349 is a deficient number, since it is larger than the sum of its proper divisors (1157651).

30945349 is a wasteful number, since it uses less digits than its factorization.

30945349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3047.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 30945349 is about 5562.8543932050. The cubic root of 30945349 is about 313.9533549384.

The spelling of 30945349 in words is "thirty million, nine hundred forty-five thousand, three hundred forty-nine".