30405413 has 8 divisors (see below), whose sum is σ = 30731928. Its totient is φ = 30081024.

The previous prime is 30405391. The next prime is 30405421. The reversal of 30405413 is 31450403.

It can be written as a sum of positive squares in 4 ways, for example, as 1493284 + 28912129 = 1222^2 + 5377^2 .

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 30405413 - 2²⁰ = 29356837 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 (30405433) 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, 49295 + ... + 49907.

It is an arithmetic number, because the mean of its divisors is an integer number (3841491).

Almost surely, 2^30405413 is an apocalyptic number.

It is an amenable number.

30405413 is a deficient number, since it is larger than the sum of its proper divisors (326515).

30405413 is a wasteful number, since it uses less digits than its factorization.

30405413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 30405413 is about 5514.1103543545. The cubic root of 30405413 is about 312.1166730256.

Adding to 30405413 its reverse (31450403), we get a palindrome (61855816).

The spelling of 30405413 in words is "thirty million, four hundred five thousand, four hundred thirteen".