40969231 has 4 divisors (see below), whose sum is σ = 40986000. Its totient is φ = 40952464.

The previous prime is 40969223. The next prime is 40969241. The reversal of 40969231 is 13296904.

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

It is a cyclic number.

It is not a de Polignac number, because 40969231 - 2³ = 40969223 is a prime.

It is a super-2 number, since 2×40969231² = 3356955777462722, 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 (40969241) 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, 3931 + ... + 9868.

It is an arithmetic number, because the mean of its divisors is an integer number (10246500).

Almost surely, 2^40969231 is an apocalyptic number.

40969231 is a deficient number, since it is larger than the sum of its proper divisors (16769).

40969231 is a wasteful number, since it uses less digits than its factorization.

40969231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16768.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 40969231 is about 6400.7211312476. The cubic root of 40969231 is about 344.7354437551.

The spelling of 40969231 in words is "forty million, nine hundred sixty-nine thousand, two hundred thirty-one".