304164649 has 2 divisors, whose sum is σ = 304164650. Its totient is φ = 304164648.

The previous prime is 304164643. The next prime is 304164677. The reversal of 304164649 is 946461403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 274134249 + 30030400 = 16557^2 + 5480^2 .

It is a cyclic number.

It is not a de Polignac number, because 304164649 - 2⁵ = 304164617 is a prime.

It is a super-2 number, since 2×304164649² = 185032267402586402, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (304164643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152082324 + 152082325.

It is an arithmetic number, because the mean of its divisors is an integer number (152082325).

Almost surely, 2^304164649 is an apocalyptic number.

It is an amenable number.

304164649 is a deficient number, since it is larger than the sum of its proper divisors (1).

304164649 is an equidigital number, since it uses as much as digits as its factorization.

304164649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 304164649 is about 17440.3167689122. The cubic root of 304164649 is about 672.5164510931.

The spelling of 304164649 in words is "three hundred four million, one hundred sixty-four thousand, six hundred forty-nine".