40355995 has 4 divisors (see below), whose sum is σ = 48427200. Its totient is φ = 32284792.

The previous prime is 40355963. The next prime is 40355999. The reversal of 40355995 is 59955304.

It is a happy number.

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 40355995 - 2⁵ = 40355963 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (40355999) 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, 4035595 + ... + 4035604.

It is an arithmetic number, because the mean of its divisors is an integer number (12106800).

Almost surely, 2^40355995 is an apocalyptic number.

40355995 is a deficient number, since it is larger than the sum of its proper divisors (8071205).

40355995 is an equidigital number, since it uses as much as digits as its factorization.

40355995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8071204.

The product of its (nonzero) digits is 121500, while the sum is 40.

The square root of 40355995 is about 6352.6368540945. The cubic root of 40355995 is about 343.0067657549.

The spelling of 40355995 in words is "forty million, three hundred fifty-five thousand, nine hundred ninety-five".