40441615 has 4 divisors (see below), whose sum is σ = 48529944. Its totient is φ = 32353288.

The previous prime is 40441591. The next prime is 40441619. The reversal of 40441615 is 51614404.

40441615 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40441615 - 2²¹ = 38344463 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40441615.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40441619) 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 3 ways as a sum of consecutive naturals, for example, 4044157 + ... + 4044166.

It is an arithmetic number, because the mean of its divisors is an integer number (12132486).

Almost surely, 2^40441615 is an apocalyptic number.

40441615 is a deficient number, since it is larger than the sum of its proper divisors (8088329).

40441615 is an equidigital number, since it uses as much as digits as its factorization.

40441615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8088328.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 40441615 is about 6359.3722174441. The cubic root of 40441615 is about 343.2491708328.

The spelling of 40441615 in words is "forty million, four hundred forty-one thousand, six hundred fifteen".