40251441 has 8 divisors (see below), whose sum is σ = 53749024. Its totient is φ = 26794080.

The previous prime is 40251437. The next prime is 40251451. The reversal of 40251441 is 14415204.

It is a happy number.

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

It is not a de Polignac number, because 40251441 - 2² = 40251437 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 (40251401) 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, 7636 + ... + 11781.

It is an arithmetic number, because the mean of its divisors is an integer number (6718628).

Almost surely, 2^40251441 is an apocalyptic number.

It is an amenable number.

40251441 is a deficient number, since it is larger than the sum of its proper divisors (13497583).

40251441 is a wasteful number, since it uses less digits than its factorization.

40251441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20111.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 40251441 is about 6344.4023359179. The cubic root of 40251441 is about 342.7102898121.

Adding to 40251441 its reverse (14415204), we get a palindrome (54666645).

The spelling of 40251441 in words is "forty million, two hundred fifty-one thousand, four hundred forty-one".