30404399 has 4 divisors (see below), whose sum is σ = 30858264. Its totient is φ = 29950536.

The previous prime is 30404377. The next prime is 30404431. The reversal of 30404399 is 99340403.

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 30404399 - 2¹² = 30400303 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 (30404369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226832 + ... + 226965.

It is an arithmetic number, because the mean of its divisors is an integer number (7714566).

Almost surely, 2^30404399 is an apocalyptic number.

30404399 is a deficient number, since it is larger than the sum of its proper divisors (453865).

30404399 is an equidigital number, since it uses as much as digits as its factorization.

30404399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453864.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 30404399 is about 5514.0184076588. The cubic root of 30404399 is about 312.1132033603.

It can be divided in two parts, 30404 and 399, that added together give a palindrome (30803).

The spelling of 30404399 in words is "thirty million, four hundred four thousand, three hundred ninety-nine".