440970919 has 2 divisors, whose sum is σ = 440970920. Its totient is φ = 440970918.

The previous prime is 440970889. The next prime is 440970931. The reversal of 440970919 is 919079044.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 440970919 - 2¹³ = 440962727 is a prime.

It is a super-2 number, since 2×440970919² = 388910702807409122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (440970419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220485459 + 220485460.

It is an arithmetic number, because the mean of its divisors is an integer number (220485460).

Almost surely, 2^440970919 is an apocalyptic number.

440970919 is a deficient number, since it is larger than the sum of its proper divisors (1).

440970919 is an equidigital number, since it uses as much as digits as its factorization.

440970919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 440970919 is about 20999.3075838229. The cubic root of 440970919 is about 761.1495294598.

The spelling of 440970919 in words is "four hundred forty million, nine hundred seventy thousand, nine hundred nineteen".