40444113 has 16 divisors (see below), whose sum is σ = 54705600. Its totient is φ = 26576064.

The previous prime is 40444099. The next prime is 40444127. The reversal of 40444113 is 31144404.

It is an interprime number because it is at equal distance from previous prime (40444099) and next prime (40444127).

It is not a de Polignac number, because 40444113 - 2¹⁰ = 40443089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40444113.

It is not an unprimeable number, because it can be changed into a prime (40444153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77070 + ... + 77592.

It is an arithmetic number, because the mean of its divisors is an integer number (3419100).

Almost surely, 2^40444113 is an apocalyptic number.

It is an amenable number.

40444113 is a deficient number, since it is larger than the sum of its proper divisors (14261487).

40444113 is a wasteful number, since it uses less digits than its factorization.

40444113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 40444113 is about 6359.5686174457. The cubic root of 40444113 is about 343.2562379655.

Adding to 40444113 its reverse (31144404), we get a palindrome (71588517).

It can be divided in two parts, 40 and 444113, that added together give a triangular number (444153 = T₉₄₂).

The spelling of 40444113 in words is "forty million, four hundred forty-four thousand, one hundred thirteen".