40023134 has 16 divisors (see below), whose sum is σ = 65118816. Its totient is φ = 18374400.

The previous prime is 40023133. The next prime is 40023143. The reversal of 40023134 is 43132004.

40023134 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×40023134³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40023133) 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, 12962 + ... + 15749.

It is an arithmetic number, because the mean of its divisors is an integer number (4069926).

Almost surely, 2^40023134 is an apocalyptic number.

40023134 is a deficient number, since it is larger than the sum of its proper divisors (25095682).

40023134 is a wasteful number, since it uses less digits than its factorization.

40023134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28771.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 40023134 is about 6326.3839592614. The cubic root of 40023134 is about 342.0611076016.

Adding to 40023134 its reverse (43132004), we get a palindrome (83155138).

The spelling of 40023134 in words is "forty million, twenty-three thousand, one hundred thirty-four".