400304264725 has 6 divisors (see below), whose sum is σ = 496377288290. Its totient is φ = 320243411760.

The previous prime is 400304264677. The next prime is 400304264729. The reversal of 400304264725 is 527462403004.

It can be written as a sum of positive squares in 3 ways, for example, as 72890280324 + 327413984401 = 269982^2 + 572201^2 .

It is not a de Polignac number, because 400304264725 - 2⁷ = 400304264597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400304264729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8006085270 + ... + 8006085319.

Almost surely, 2^400304264725 is an apocalyptic number.

It is an amenable number.

400304264725 is a deficient number, since it is larger than the sum of its proper divisors (96073023565).

400304264725 is a wasteful number, since it uses less digits than its factorization.

400304264725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16012170599 (or 16012170594 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 37.

Adding to 400304264725 its reverse (527462403004), we get a palindrome (927766667729).

The spelling of 400304264725 in words is "four hundred billion, three hundred four million, two hundred sixty-four thousand, seven hundred twenty-five".