40345432 has 16 divisors (see below), whose sum is σ = 75715200. Its totient is φ = 20154720.

The previous prime is 40345423. The next prime is 40345433. The reversal of 40345432 is 23454304.

It is a junction number, because it is equal to n+sod(n) for n = 40345397 and 40345406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40345433) 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, 15694 + ... + 18082.

It is an arithmetic number, because the mean of its divisors is an integer number (4732200).

Almost surely, 2^40345432 is an apocalyptic number.

It is an amenable number.

40345432 is a deficient number, since it is larger than the sum of its proper divisors (35369768).

40345432 is a wasteful number, since it uses less digits than its factorization.

40345432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4506 (or 4502 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 40345432 is about 6351.8054126366. The cubic root of 40345432 is about 342.9768363179.

Adding to 40345432 its reverse (23454304), we get a palindrome (63799736).

The spelling of 40345432 in words is "forty million, three hundred forty-five thousand, four hundred thirty-two".