40423669 has 8 divisors (see below), whose sum is σ = 47490912. Its totient is φ = 33921840.

The previous prime is 40423667. The next prime is 40423687. The reversal of 40423669 is 96632404.

40423669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40423669 - 2¹ = 40423667 is a prime.

It is a super-2 number, since 2×40423669² = 3268146030843122, 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 (40423661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141199 + ... + 141484.

It is an arithmetic number, because the mean of its divisors is an integer number (5936364).

Almost surely, 2^40423669 is an apocalyptic number.

It is an amenable number.

40423669 is a deficient number, since it is larger than the sum of its proper divisors (7067243).

40423669 is a wasteful number, since it uses less digits than its factorization.

40423669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282707.

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 40423669 is about 6357.9610725452. The cubic root of 40423669 is about 343.1983909533.

The spelling of 40423669 in words is "forty million, four hundred twenty-three thousand, six hundred sixty-nine".