40269269 has 4 divisors (see below), whose sum is σ = 40576800. Its totient is φ = 39961740.

The previous prime is 40269263. The next prime is 40269289. The reversal of 40269269 is 96296204.

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 a cyclic number.

It is not a de Polignac number, because 40269269 - 2⁴ = 40269253 is a prime.

It is a super-2 number, since 2×40269269² = 3243228051588722, 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 (40269263) 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, 153569 + ... + 153830.

It is an arithmetic number, because the mean of its divisors is an integer number (10144200).

Almost surely, 2^40269269 is an apocalyptic number.

It is an amenable number.

40269269 is a deficient number, since it is larger than the sum of its proper divisors (307531).

40269269 is a wasteful number, since it uses less digits than its factorization.

40269269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307530.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 40269269 is about 6345.8071984579. The cubic root of 40269269 is about 342.7608796135.

The spelling of 40269269 in words is "forty million, two hundred sixty-nine thousand, two hundred sixty-nine".