400052265 has 16 divisors (see below), whose sum is σ = 641520000. Its totient is φ = 212882432.

The previous prime is 400052249. The next prime is 400052327. The reversal of 400052265 is 562250004.

It is a cyclic number.

It is not a de Polignac number, because 400052265 - 2⁴ = 400052249 is a prime.

It is a Curzon number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 22965 + ... + 36434.

It is an arithmetic number, because the mean of its divisors is an integer number (40095000).

Almost surely, 2^400052265 is an apocalyptic number.

It is an amenable number.

400052265 is a deficient number, since it is larger than the sum of its proper divisors (241467735).

400052265 is a wasteful number, since it uses less digits than its factorization.

400052265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59856.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 400052265 is about 20001.3065823211. The cubic root of 400052265 is about 736.8383893149.

It can be divided in two parts, 4000 and 52265, that added together give a palindrome (56265).

The spelling of 400052265 in words is "four hundred million, fifty-two thousand, two hundred sixty-five".