40669344 has 96 divisors (see below), whose sum is σ = 120032640. Its totient is φ = 13395456.

The previous prime is 40669333. The next prime is 40669361. The reversal of 40669344 is 44396604.

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 (36).

It is a junction number, because it is equal to n+sod(n) for n = 40669299 and 40669308.

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, 88764 + ... + 89220.

It is an arithmetic number, because the mean of its divisors is an integer number (1250340).

Almost surely, 2^40669344 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 40669344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60016320).

40669344 is an abundant number, since it is smaller than the sum of its proper divisors (79363296).

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

40669344 is a wasteful number, since it uses less digits than its factorization.

40669344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579 (or 565 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 40669344 is about 6377.2520727975. The cubic root of 40669344 is about 343.8922503711.

The spelling of 40669344 in words is "forty million, six hundred sixty-nine thousand, three hundred forty-four".