40440704 has 32 divisors (see below), whose sum is σ = 82752600. Its totient is φ = 19671552.

The previous prime is 40440679. The next prime is 40440733. The reversal of 40440704 is 40704404.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 40440704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 467 + ... + 9005.

Almost surely, 2^40440704 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 40440704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41376300).

40440704 is an abundant number, since it is smaller than the sum of its proper divisors (42311896).

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

40440704 is an equidigital number, since it uses as much as digits as its factorization.

40440704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8590 (or 8578 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 23.

The square root of 40440704 is about 6359.3005904738. The cubic root of 40440704 is about 343.2465934354.

The spelling of 40440704 in words is "forty million, four hundred forty thousand, seven hundred four".