440104451 has 2 divisors, whose sum is σ = 440104452. Its totient is φ = 440104450.

The previous prime is 440104409. The next prime is 440104453. The reversal of 440104451 is 154401044.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 440104451 - 2⁶ = 440104387 is a prime.

It is a super-2 number, since 2×440104451² = 387383855580022802, which contains 22 as substring.

Together with 440104453, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (440104453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220052225 + 220052226.

It is an arithmetic number, because the mean of its divisors is an integer number (220052226).

Almost surely, 2^440104451 is an apocalyptic number.

440104451 is a deficient number, since it is larger than the sum of its proper divisors (1).

440104451 is an equidigital number, since it uses as much as digits as its factorization.

440104451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 440104451 is about 20978.6665686835. Note that the first 3 decimals coincide. The cubic root of 440104451 is about 760.6506725704.

Adding to 440104451 its reverse (154401044), we get a palindrome (594505495).

The spelling of 440104451 in words is "four hundred forty million, one hundred four thousand, four hundred fifty-one".