40026923 has 4 divisors (see below), whose sum is σ = 41767248. Its totient is φ = 38286600.

The previous prime is 40026887. The next prime is 40026997. The reversal of 40026923 is 32962004.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40026923 - 2¹⁰ = 40025899 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40026892 and 40026901.

It is not an unprimeable number, because it can be changed into a prime (40026323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 870128 + ... + 870173.

It is an arithmetic number, because the mean of its divisors is an integer number (10441812).

Almost surely, 2^40026923 is an apocalyptic number.

40026923 is a deficient number, since it is larger than the sum of its proper divisors (1740325).

40026923 is a wasteful number, since it uses less digits than its factorization.

40026923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1740324.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 40026923 is about 6326.6834123417. The cubic root of 40026923 is about 342.0719015976.

Adding to 40026923 its reverse (32962004), we get a palindrome (72988927).

The spelling of 40026923 in words is "forty million, twenty-six thousand, nine hundred twenty-three".