40023043 has 8 divisors (see below), whose sum is σ = 40472640. Its totient is φ = 39576000.

The previous prime is 40023041. The next prime is 40023089. The reversal of 40023043 is 34032004.

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 40023043 - 2¹ = 40023041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40023041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52918 + ... + 53668.

It is an arithmetic number, because the mean of its divisors is an integer number (5059080).

Almost surely, 2^40023043 is an apocalyptic number.

40023043 is a deficient number, since it is larger than the sum of its proper divisors (449597).

40023043 is a wasteful number, since it uses less digits than its factorization.

40023043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 40023043 is about 6326.3767671551. The cubic root of 40023043 is about 342.0608483550.

Adding to 40023043 its reverse (34032004), we get a palindrome (74055047).

The spelling of 40023043 in words is "forty million, twenty-three thousand, forty-three".