40307023 has 8 divisors (see below), whose sum is σ = 41966288. Its totient is φ = 38677824.

The previous prime is 40307021. The next prime is 40307053. The reversal of 40307023 is 32070304.

40307023 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 40307023 - 2¹ = 40307021 is a prime.

It is a super-2 number, since 2×40307023² = 3249312206245058, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40307021) 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, 4761 + ... + 10162.

It is an arithmetic number, because the mean of its divisors is an integer number (5245786).

Almost surely, 2^40307023 is an apocalyptic number.

40307023 is a deficient number, since it is larger than the sum of its proper divisors (1659265).

40307023 is a wasteful number, since it uses less digits than its factorization.

40307023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15033.

The product of its (nonzero) digits is 504, while the sum is 19.

The square root of 40307023 is about 6348.7812216204. The cubic root of 40307023 is about 342.8679633572.

Adding to 40307023 its reverse (32070304), we get a palindrome (72377327).

The spelling of 40307023 in words is "forty million, three hundred seven thousand, twenty-three".