40044488 has 32 divisors (see below), whose sum is σ = 82654560. Its totient is φ = 18036480.

The previous prime is 40044479. The next prime is 40044509. The reversal of 40044488 is 88444004.

It is a happy number.

It is a super-2 number, since 2×40044488² = 3207122038364288, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7931 + ... + 11957.

It is an arithmetic number, because the mean of its divisors is an integer number (2582955).

Almost surely, 2^40044488 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 40044488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41327280).

40044488 is an abundant number, since it is smaller than the sum of its proper divisors (42610072).

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

40044488 is a wasteful number, since it uses less digits than its factorization.

40044488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4157 (or 4153 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 32.

The square root of 40044488 is about 6328.0714281683. The cubic root of 40044488 is about 342.1219313760.

The spelling of 40044488 in words is "forty million, forty-four thousand, four hundred eighty-eight".