30390379 has 4 divisors (see below), whose sum is σ = 31097176. Its totient is φ = 29683584.

The previous prime is 30390331. The next prime is 30390401. The reversal of 30390379 is 97309303.

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

It is a cyclic number.

It is not a de Polignac number, because 30390379 - 2¹¹ = 30388331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30390179) 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, 353334 + ... + 353419.

It is an arithmetic number, because the mean of its divisors is an integer number (7774294).

Almost surely, 2^30390379 is an apocalyptic number.

30390379 is a deficient number, since it is larger than the sum of its proper divisors (706797).

30390379 is an equidigital number, since it uses as much as digits as its factorization.

30390379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706796.

The product of its (nonzero) digits is 15309, while the sum is 34.

The square root of 30390379 is about 5512.7469559195. The cubic root of 30390379 is about 312.0652223661.

The spelling of 30390379 in words is "thirty million, three hundred ninety thousand, three hundred seventy-nine".