40023473 has 8 divisors (see below), whose sum is σ = 47730048. Its totient is φ = 32814144.

The previous prime is 40023463. The next prime is 40023499. The reversal of 40023473 is 37432004.

It is a happy number.

40023473 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 40023473 - 2²⁴ = 23246257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40023413) 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, 124136 + ... + 124457.

It is an arithmetic number, because the mean of its divisors is an integer number (5966256).

Almost surely, 2^40023473 is an apocalyptic number.

It is an amenable number.

40023473 is a deficient number, since it is larger than the sum of its proper divisors (7706575).

40023473 is a wasteful number, since it uses less digits than its factorization.

40023473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248623.

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 40023473 is about 6326.4107517612. The cubic root of 40023473 is about 342.0620733630.

Adding to 40023473 its reverse (37432004), we get a palindrome (77455477).

The spelling of 40023473 in words is "forty million, twenty-three thousand, four hundred seventy-three".