40451432 has 32 divisors (see below), whose sum is σ = 91782720. Its totient is φ = 16316160.

The previous prime is 40451431. The next prime is 40451441. The reversal of 40451432 is 23415404.

40451432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 40451398 and 40451407.

It is not an unprimeable number, because it can be changed into a prime (40451431) 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, 20294 + ... + 22197.

It is an arithmetic number, because the mean of its divisors is an integer number (2868210).

Almost surely, 2^40451432 is an apocalyptic number.

It is an amenable number.

40451432 is an abundant number, since it is smaller than the sum of its proper divisors (51331288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40451432 is a wasteful number, since it uses less digits than its factorization.

40451432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42521 (or 42517 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 40451432 is about 6360.1440235265. The cubic root of 40451432 is about 343.2769425929.

Adding to 40451432 its reverse (23415404), we get a palindrome (63866836).

The spelling of 40451432 in words is "forty million, four hundred fifty-one thousand, four hundred thirty-two".