40118953 has 4 divisors (see below), whose sum is σ = 45850240. Its totient is φ = 34387668.

The previous prime is 40118941. The next prime is 40118959. The reversal of 40118953 is 35981104.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 40118953 - 2²⁵ = 6564521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40118959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2865633 + ... + 2865646.

It is an arithmetic number, because the mean of its divisors is an integer number (11462560).

Almost surely, 2^40118953 is an apocalyptic number.

It is an amenable number.

40118953 is a deficient number, since it is larger than the sum of its proper divisors (5731287).

40118953 is an equidigital number, since it uses as much as digits as its factorization.

40118953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5731286.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 40118953 is about 6333.9523995685. The cubic root of 40118953 is about 342.3338651173. Note that the first 3 decimals are identical.

The spelling of 40118953 in words is "forty million, one hundred eighteen thousand, nine hundred fifty-three".