400265315 has 4 divisors (see below), whose sum is σ = 480318384. Its totient is φ = 320212248.

The previous prime is 400265291. The next prime is 400265317. The reversal of 400265315 is 513562004.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 400265315 - 2¹⁸ = 400003171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400265317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40026527 + ... + 40026536.

It is an arithmetic number, because the mean of its divisors is an integer number (120079596).

Almost surely, 2^400265315 is an apocalyptic number.

400265315 is a deficient number, since it is larger than the sum of its proper divisors (80053069).

400265315 is an equidigital number, since it uses as much as digits as its factorization.

400265315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80053068.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 400265315 is about 20006.6317754888. The cubic root of 400265315 is about 736.9691685266.

The spelling of 400265315 in words is "four hundred million, two hundred sixty-five thousand, three hundred fifteen".