306504041 has 12 divisors (see below), whose sum is σ = 316659420. Its totient is φ = 296663040.

The previous prime is 306504031. The next prime is 306504053. The reversal of 306504041 is 140405603.

306504041 = 12379² + 12380².

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 20894041 + 285610000 = 4571^2 + 16900^2 .

It is a de Polignac number, because none of the positive numbers 2^k-306504041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 306503998 and 306504016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306504031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 329465 + ... + 330393.

It is an arithmetic number, because the mean of its divisors is an integer number (26388285).

Almost surely, 2^306504041 is an apocalyptic number.

306504041 is the 12380-th centered square number.

It is an amenable number.

306504041 is a deficient number, since it is larger than the sum of its proper divisors (10155379).

306504041 is an equidigital number, since it uses as much as digits as its factorization.

306504041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1244 (or 1207 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 306504041 is about 17507.2568096775. The cubic root of 306504041 is about 674.2362030833.

Adding to 306504041 its reverse (140405603), we get a palindrome (446909644).

The spelling of 306504041 in words is "three hundred six million, five hundred four thousand, forty-one".