400595 has 8 divisors (see below), whose sum is σ = 517776. Its totient is φ = 295776.

The previous prime is 400579. The next prime is 400597. The reversal of 400595 is 595004.

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

It is not a de Polignac number, because 400595 - 2⁴ = 400579 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 400595.

It is not an unprimeable number, because it can be changed into a prime (400597) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3017 + ... + 3146.

It is an arithmetic number, because the mean of its divisors is an integer number (64722).

2⁴⁰⁰⁵⁹⁵ is an apocalyptic number.

400595 is a deficient number, since it is larger than the sum of its proper divisors (117181).

400595 is a wasteful number, since it uses less digits than its factorization.

400595 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6181.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 400595 is about 632.9257460398. The cubic root of 400595 is about 73.7171451857.

Adding to 400595 its reverse (595004), we get a palindrome (995599).

The spelling of 400595 in words is "four hundred thousand, five hundred ninety-five".