40400441 has 4 divisors (see below), whose sum is σ = 42526800. Its totient is φ = 38274084.

The previous prime is 40400431. The next prime is 40400453. The reversal of 40400441 is 14400404.

40400441 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40400441 - 2⁶ = 40400377 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40400431) 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, 1063151 + ... + 1063188.

It is an arithmetic number, because the mean of its divisors is an integer number (10631700).

Almost surely, 2^40400441 is an apocalyptic number.

It is an amenable number.

40400441 is a deficient number, since it is larger than the sum of its proper divisors (2126359).

40400441 is a wasteful number, since it uses less digits than its factorization.

40400441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2126358.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 40400441 is about 6356.1341238209. The cubic root of 40400441 is about 343.1326428424.

Adding to 40400441 its reverse (14400404), we get a palindrome (54800845).

The spelling of 40400441 in words is "forty million, four hundred thousand, four hundred forty-one".