40440032 has 12 divisors (see below), whose sum is σ = 79616376. Its totient is φ = 20220000.

The previous prime is 40440019. The next prime is 40440077. The reversal of 40440032 is 23004404.

It is a super-2 number, since 2×40440032² = 3270792376322048, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631844 + ... + 631907.

It is an arithmetic number, because the mean of its divisors is an integer number (6634698).

Almost surely, 2^40440032 is an apocalyptic number.

It is an amenable number.

40440032 is a deficient number, since it is larger than the sum of its proper divisors (39176344).

40440032 is a wasteful number, since it uses less digits than its factorization.

40440032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1263761 (or 1263753 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 40440032 is about 6359.2477542552. The cubic root of 40440032 is about 343.2446921910.

Adding to 40440032 its reverse (23004404), we get a palindrome (63444436).

The spelling of 40440032 in words is "forty million, four hundred forty thousand, thirty-two".