400065265 has 8 divisors (see below), whose sum is σ = 480189888. Its totient is φ = 319977840.

The previous prime is 400065257. The next prime is 400065277. The reversal of 400065265 is 562560004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 400065265 - 2³ = 400065257 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27900 + ... + 39730.

It is an arithmetic number, because the mean of its divisors is an integer number (60023736).

Almost surely, 2^400065265 is an apocalyptic number.

It is an amenable number.

400065265 is a deficient number, since it is larger than the sum of its proper divisors (80124623).

400065265 is a wasteful number, since it uses less digits than its factorization.

400065265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18599.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 400065265 is about 20001.6315584504. The cubic root of 400065265 is about 736.8463706014.

The spelling of 400065265 in words is "four hundred million, sixty-five thousand, two hundred sixty-five".