30530397 has 16 divisors (see below), whose sum is σ = 42983360. Its totient is φ = 19222272.

The previous prime is 30530393. The next prime is 30530399. The reversal of 30530397 is 79303503.

It is not a de Polignac number, because 30530397 - 2² = 30530393 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 (30530393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24063 + ... + 25299.

It is an arithmetic number, because the mean of its divisors is an integer number (2686460).

Almost surely, 2^30530397 is an apocalyptic number.

It is an amenable number.

30530397 is a deficient number, since it is larger than the sum of its proper divisors (12452963).

30530397 is a wasteful number, since it uses less digits than its factorization.

30530397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1692.

The product of its (nonzero) digits is 8505, while the sum is 30.

The square root of 30530397 is about 5525.4318383272. The cubic root of 30530397 is about 312.5437489683.

The spelling of 30530397 in words is "thirty million, five hundred thirty thousand, three hundred ninety-seven".