40869031 has 4 divisors (see below), whose sum is σ = 46707472. Its totient is φ = 35030592.

The previous prime is 40869013. The next prime is 40869043. The reversal of 40869031 is 13096804.

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 40869031 - 2⁷ = 40868903 is a prime.

It is a super-2 number, since 2×40869031² = 3340555389757922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40868984 and 40869002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40869011) 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, 2919210 + ... + 2919223.

It is an arithmetic number, because the mean of its divisors is an integer number (11676868).

Almost surely, 2^40869031 is an apocalyptic number.

40869031 is a deficient number, since it is larger than the sum of its proper divisors (5838441).

40869031 is an equidigital number, since it uses as much as digits as its factorization.

40869031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5838440.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 40869031 is about 6392.8890964884. The cubic root of 40869031 is about 344.4541701459.

The spelling of 40869031 in words is "forty million, eight hundred sixty-nine thousand, thirty-one".