40109253 has 8 divisors (see below), whose sum is σ = 53542848. Its totient is φ = 26707584.

The previous prime is 40109231. The next prime is 40109281. The reversal of 40109253 is 35290104.

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

It is not a de Polignac number, because 40109253 - 2⁸ = 40108997 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40109653) 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, 4876 + ... + 10197.

It is an arithmetic number, because the mean of its divisors is an integer number (6692856).

Almost surely, 2^40109253 is an apocalyptic number.

It is an amenable number.

40109253 is a deficient number, since it is larger than the sum of its proper divisors (13433595).

40109253 is a wasteful number, since it uses less digits than its factorization.

40109253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15963.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 40109253 is about 6333.1866386520. The cubic root of 40109253 is about 342.3062729537.

Adding to 40109253 its reverse (35290104), we get a palindrome (75399357).

The spelling of 40109253 in words is "forty million, one hundred nine thousand, two hundred fifty-three".