30949193 has 4 divisors (see below), whose sum is σ = 33762768. Its totient is φ = 28135620.

The previous prime is 30949189. The next prime is 30949201. The reversal of 30949193 is 39194903.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30949193 - 2² = 30949189 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30949103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1406771 + ... + 1406792.

It is an arithmetic number, because the mean of its divisors is an integer number (8440692).

Almost surely, 2^30949193 is an apocalyptic number.

It is an amenable number.

30949193 is a deficient number, since it is larger than the sum of its proper divisors (2813575).

30949193 is a wasteful number, since it uses less digits than its factorization.

30949193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2813574.

The product of its (nonzero) digits is 26244, while the sum is 38.

The square root of 30949193 is about 5563.1998885533. The cubic root of 30949193 is about 313.9663540564.

The spelling of 30949193 in words is "thirty million, nine hundred forty-nine thousand, one hundred ninety-three".