30070405 has 4 divisors (see below), whose sum is σ = 36084492. Its totient is φ = 24056320.

The previous prime is 30070387. The next prime is 30070409. The reversal of 30070405 is 50407003.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17581249 + 12489156 = 4193^2 + 3534^2 .

It is not a de Polignac number, because 30070405 - 2¹³ = 30062213 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 (30070409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3007036 + ... + 3007045.

It is an arithmetic number, because the mean of its divisors is an integer number (9021123).

Almost surely, 2^30070405 is an apocalyptic number.

It is an amenable number.

30070405 is a deficient number, since it is larger than the sum of its proper divisors (6014087).

30070405 is an equidigital number, since it uses as much as digits as its factorization.

30070405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6014086.

The product of its (nonzero) digits is 420, while the sum is 19.

The square root of 30070405 is about 5483.6488764326. The cubic root of 30070405 is about 310.9661325872.

Adding to 30070405 its reverse (50407003), we get a palindrome (80477408).

The spelling of 30070405 in words is "thirty million, seventy thousand, four hundred five".