40243269 has 12 divisors (see below), whose sum is σ = 58979648. Its totient is φ = 24389640.

The previous prime is 40243253. The next prime is 40243279. The reversal of 40243269 is 96234204.

It is not a de Polignac number, because 40243269 - 2⁴ = 40243253 is a prime.

It is a super-2 number, since 2×40243269² = 3239041399612722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40243279) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55069 + ... + 55794.

Almost surely, 2^40243269 is an apocalyptic number.

It is an amenable number.

40243269 is a deficient number, since it is larger than the sum of its proper divisors (18736379).

40243269 is a wasteful number, since it uses less digits than its factorization.

40243269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110888 (or 110877 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 40243269 is about 6343.7582709306. The cubic root of 40243269 is about 342.6870954620.

The spelling of 40243269 in words is "forty million, two hundred forty-three thousand, two hundred sixty-nine".