440036641 has 8 divisors (see below), whose sum is σ = 491748768. Its totient is φ = 390276000.

The previous prime is 440036591. The next prime is 440036651. The reversal of 440036641 is 146630044.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 440036641 - 2¹¹ = 440034593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (440036651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 487395 + ... + 488296.

It is an arithmetic number, because the mean of its divisors is an integer number (61468596).

Almost surely, 2^440036641 is an apocalyptic number.

440036641 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

440036641 is a deficient number, since it is larger than the sum of its proper divisors (51712127).

440036641 is a wasteful number, since it uses less digits than its factorization.

440036641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975743.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 440036641 is about 20977.0503407891. The cubic root of 440036641 is about 760.6116042907.

Adding to 440036641 its reverse (146630044), we get a palindrome (586666685).

It can be divided in two parts, 4400 and 36641, that added together give a triangular number (41041 = T₂₈₆).

The spelling of 440036641 in words is "four hundred forty million, thirty-six thousand, six hundred forty-one".