440999983 has 2 divisors, whose sum is σ = 440999984. Its totient is φ = 440999982.

The previous prime is 440999971. The next prime is 441000023. The reversal of 440999983 is 389999044.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-440999983 is a prime.

It is a super-3 number, since 3×440999983³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (447999983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220499991 + 220499992.

It is an arithmetic number, because the mean of its divisors is an integer number (220499992).

Almost surely, 2^440999983 is an apocalyptic number.

440999983 is a deficient number, since it is larger than the sum of its proper divisors (1).

440999983 is an equidigital number, since it uses as much as digits as its factorization.

440999983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2519424, while the sum is 55.

The square root of 440999983 is about 20999.9995952381. Note that the first 3 decimals coincide. The cubic root of 440999983 is about 761.1662513214.

The spelling of 440999983 in words is "four hundred forty million, nine hundred ninety-nine thousand, nine hundred eighty-three".