40423132 has 12 divisors (see below), whose sum is σ = 73022656. Its totient is φ = 19559520.

The previous prime is 40423109. The next prime is 40423133. The reversal of 40423132 is 23132404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40423133) 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, 162873 + ... + 163120.

Almost surely, 2^40423132 is an apocalyptic number.

It is an amenable number.

40423132 is a deficient number, since it is larger than the sum of its proper divisors (32599524).

40423132 is a wasteful number, since it uses less digits than its factorization.

40423132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326028 (or 326026 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 40423132 is about 6357.9188418853. The cubic root of 40423132 is about 343.1968712302.

Adding to 40423132 its reverse (23132404), we get a palindrome (63555536).

The spelling of 40423132 in words is "forty million, four hundred twenty-three thousand, one hundred thirty-two".