30400609 has 2 divisors, whose sum is σ = 30400610. Its totient is φ = 30400608.

The previous prime is 30400597. The next prime is 30400621. The reversal of 30400609 is 90600403.

It is a balanced prime because it is at equal distance from previous prime (30400597) and next prime (30400621).

It can be written as a sum of positive squares in only one way, i.e., 25472209 + 4928400 = 5047^2 + 2220^2 .

It is a cyclic number.

It is not a de Polignac number, because 30400609 - 2⁷ = 30400481 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30400609.

It is not a weakly prime, because it can be changed into another prime (30400649) 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 as a sum of consecutive naturals, namely, 15200304 + 15200305.

It is an arithmetic number, because the mean of its divisors is an integer number (15200305).

Almost surely, 2^30400609 is an apocalyptic number.

It is an amenable number.

30400609 is a deficient number, since it is larger than the sum of its proper divisors (1).

30400609 is an equidigital number, since it uses as much as digits as its factorization.

30400609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 30400609 is about 5513.6747274390. The cubic root of 30400609 is about 312.1002342041.

The spelling of 30400609 in words is "thirty million, four hundred thousand, six hundred nine".