40044365 has 8 divisors (see below), whose sum is σ = 48841368. Its totient is φ = 31510080.

The previous prime is 40044353. The next prime is 40044409. The reversal of 40044365 is 56344004.

It can be written as a sum of positive squares in 4 ways, for example, as 2271049 + 37773316 = 1507^2 + 6146^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40044365 - 2⁴ = 40044349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65342 + ... + 65951.

It is an arithmetic number, because the mean of its divisors is an integer number (6105171).

Almost surely, 2^40044365 is an apocalyptic number.

It is an amenable number.

40044365 is a deficient number, since it is larger than the sum of its proper divisors (8797003).

40044365 is a wasteful number, since it uses less digits than its factorization.

40044365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131359.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 40044365 is about 6328.0617095600. The cubic root of 40044365 is about 342.1215810902.

Adding to 40044365 its reverse (56344004), we get a palindrome (96388369).

The spelling of 40044365 in words is "forty million, forty-four thousand, three hundred sixty-five".