30405197 has 8 divisors (see below), whose sum is σ = 32449536. Its totient is φ = 28389312.

The previous prime is 30405169. The next prime is 30405211. The reversal of 30405197 is 79150403.

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 30405197 - 2²⁴ = 13627981 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 (30405107) 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, 4883 + ... + 9200.

It is an arithmetic number, because the mean of its divisors is an integer number (4056192).

Almost surely, 2^30405197 is an apocalyptic number.

It is an amenable number.

30405197 is a deficient number, since it is larger than the sum of its proper divisors (2044339).

30405197 is a wasteful number, since it uses less digits than its factorization.

30405197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14227.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 30405197 is about 5514.0907682047. The cubic root of 30405197 is about 312.1159339318.

The spelling of 30405197 in words is "thirty million, four hundred five thousand, one hundred ninety-seven".