40113432 has 48 divisors (see below), whose sum is σ = 108964440. Its totient is φ = 13331328.

The previous prime is 40113413. The next prime is 40113461. The reversal of 40113432 is 23431104.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33028 + ... + 34220.

Almost surely, 2^40113432 is an apocalyptic number.

It is an amenable number.

40113432 is an abundant number, since it is smaller than the sum of its proper divisors (68851008).

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

40113432 is a wasteful number, since it uses less digits than its factorization.

40113432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1672 (or 1665 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 40113432 is about 6333.5165587531. The cubic root of 40113432 is about 342.3181608859.

Adding to 40113432 its reverse (23431104), we get a palindrome (63544536).

The spelling of 40113432 in words is "forty million, one hundred thirteen thousand, four hundred thirty-two".