40395 has 8 divisors (see below), whose sum is σ = 64656. Its totient is φ = 21536.

The previous prime is 40387. The next prime is 40423. The reversal of 40395 is 59304.

40395 = 5² + 6² + ... + 49².

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

It is a cyclic number.

It is not a de Polignac number, because 40395 - 2³ = 40387 is a prime.

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, 1332 + ... + 1361.

It is an arithmetic number, because the mean of its divisors is an integer number (8082).

2⁴⁰³⁹⁵ is an apocalyptic number.

40395 is a deficient number, since it is larger than the sum of its proper divisors (24261).

40395 is a wasteful number, since it uses less digits than its factorization.

40395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2701.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 40395 is about 200.9850740727. The cubic root of 40395 is about 34.3117238155.

Adding to 40395 its reverse (59304), we get a palindrome (99699).

It can be divided in two parts, 40 and 395, that added together give a triangular number (435 = T₂₉).

The spelling of 40395 in words is "forty thousand, three hundred ninety-five".