40014432 has 96 divisors (see below), whose sum is σ = 120808800. Its totient is φ = 12870144.

The previous prime is 40014421. The next prime is 40014479. The reversal of 40014432 is 23441004.

It is a tau number, because it is divible by the number of its divisors (96).

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 15 ways as a sum of consecutive naturals, for example, 24258 + ... + 25854.

It is an arithmetic number, because the mean of its divisors is an integer number (1258425).

Almost surely, 2^40014432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40014432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60404400).

40014432 is an abundant number, since it is smaller than the sum of its proper divisors (80794368).

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

40014432 is a wasteful number, since it uses less digits than its factorization.

40014432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1645 (or 1631 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 40014432 is about 6325.6961672214. The cubic root of 40014432 is about 342.0363150111.

Adding to 40014432 its reverse (23441004), we get a palindrome (63455436).

The spelling of 40014432 in words is "forty million, fourteen thousand, four hundred thirty-two".