40441493 has 4 divisors (see below), whose sum is σ = 40454988. Its totient is φ = 40428000.

The previous prime is 40441477. The next prime is 40441517. The reversal of 40441493 is 39414404.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 27646564 + 12794929 = 5258^2 + 3577^2 .

It is a cyclic number.

It is not a de Polignac number, because 40441493 - 2⁴ = 40441477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40441463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8 + ... + 8993.

It is an arithmetic number, because the mean of its divisors is an integer number (10113747).

Almost surely, 2^40441493 is an apocalyptic number.

It is an amenable number.

40441493 is a deficient number, since it is larger than the sum of its proper divisors (13495).

40441493 is an equidigital number, since it uses as much as digits as its factorization.

40441493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13494.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 40441493 is about 6359.3626252951. The cubic root of 40441493 is about 343.2488256732.

Adding to 40441493 its reverse (39414404), we get a palindrome (79855897).

The spelling of 40441493 in words is "forty million, four hundred forty-one thousand, four hundred ninety-three".