30400003 has 2 divisors, whose sum is σ = 30400004. Its totient is φ = 30400002.

The previous prime is 30399973. The next prime is 30400031. The reversal of 30400003 is 30000403.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30400003 - 2²¹ = 28302851 is a prime.

It is not a weakly prime, because it can be changed into another prime (30400103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15200001 + 15200002.

It is an arithmetic number, because the mean of its divisors is an integer number (15200002).

Almost surely, 2^30400003 is an apocalyptic number.

30400003 is a deficient number, since it is larger than the sum of its proper divisors (1).

30400003 is an equidigital number, since it uses as much as digits as its factorization.

30400003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 10.

The square root of 30400003 is about 5513.6197728897. The cubic root of 30400003 is about 312.0981604080.

Adding to 30400003 its reverse (30000403), we get a palindrome (60400406).

The spelling of 30400003 in words is "thirty million, four hundred thousand, three".