40413423 has 4 divisors (see below), whose sum is σ = 53884568. Its totient is φ = 26942280.

The previous prime is 40413397. The next prime is 40413481. The reversal of 40413423 is 32431404.

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

It is not a de Polignac number, because 40413423 - 2⁵ = 40413391 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40413423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40413523) 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, 6735568 + ... + 6735573.

It is an arithmetic number, because the mean of its divisors is an integer number (13471142).

Almost surely, 2^40413423 is an apocalyptic number.

40413423 is a deficient number, since it is larger than the sum of its proper divisors (13471145).

40413423 is a wasteful number, since it uses less digits than its factorization.

40413423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13471144.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 40413423 is about 6357.1552600200. The cubic root of 40413423 is about 343.1693922014.

Adding to 40413423 its reverse (32431404), we get a palindrome (72844827).

The spelling of 40413423 in words is "forty million, four hundred thirteen thousand, four hundred twenty-three".