40447704 has 64 divisors (see below), whose sum is σ = 110880000. Its totient is φ = 12193920.

The previous prime is 40447703. The next prime is 40447711. The reversal of 40447704 is 40774404.

40447704 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40447703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91917 + ... + 92355.

It is an arithmetic number, because the mean of its divisors is an integer number (1732500).

Almost surely, 2^40447704 is an apocalyptic number.

40447704 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40447704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55440000).

40447704 is an abundant number, since it is smaller than the sum of its proper divisors (70432296).

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

40447704 is a wasteful number, since it uses less digits than its factorization.

40447704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808 (or 804 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 30.

The square root of 40447704 is about 6359.8509416495. The cubic root of 40447704 is about 343.2663968125.

It can be divided in two parts, 40 and 447704, that added together give a palindrome (447744).

The spelling of 40447704 in words is "forty million, four hundred forty-seven thousand, seven hundred four".