40730269 has 4 divisors (see below), whose sum is σ = 40747996. Its totient is φ = 40712544.

The previous prime is 40730257. The next prime is 40730273. The reversal of 40730269 is 96203704.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36445369 + 4284900 = 6037^2 + 2070^2 .

It is a cyclic number.

It is not a de Polignac number, because 40730269 - 2¹⁷ = 40599197 is a prime.

It is a super-2 number, since 2×40730269² = 3317909625624722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40730269.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40730219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4794 + ... + 10219.

It is an arithmetic number, because the mean of its divisors is an integer number (10186999).

Almost surely, 2^40730269 is an apocalyptic number.

It is an amenable number.

40730269 is a deficient number, since it is larger than the sum of its proper divisors (17727).

40730269 is a wasteful number, since it uses less digits than its factorization.

40730269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17726.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 40730269 is about 6382.0270290872. The cubic root of 40730269 is about 344.0638881023.

The spelling of 40730269 in words is "forty million, seven hundred thirty thousand, two hundred sixty-nine".