40683869 has 4 divisors (see below), whose sum is σ = 40707744. Its totient is φ = 40659996.

The previous prime is 40683857. The next prime is 40683887. The reversal of 40683869 is 96838604.

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 40683869 - 2⁸ = 40683613 is a prime.

It is a super-2 number, since 2×40683869² = 3310354393618322, 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 (40683809) 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, 9167 + ... + 12860.

It is an arithmetic number, because the mean of its divisors is an integer number (10176936).

Almost surely, 2^40683869 is an apocalyptic number.

It is an amenable number.

40683869 is a deficient number, since it is larger than the sum of its proper divisors (23875).

40683869 is a wasteful number, since it uses less digits than its factorization.

40683869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23874.

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 40683869 is about 6378.3907845161. The cubic root of 40683869 is about 343.9331857121.

The spelling of 40683869 in words is "forty million, six hundred eighty-three thousand, eight hundred sixty-nine".