445380233 has 2 divisors, whose sum is σ = 445380234. Its totient is φ = 445380232.

The previous prime is 445380181. The next prime is 445380259. The reversal of 445380233 is 332083544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 439824784 + 5555449 = 20972^2 + 2357^2 .

It is a cyclic number.

It is not a de Polignac number, because 445380233 - 2²² = 441185929 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 445380233.

It is not a weakly prime, because it can be changed into another prime (445386233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222690116 + 222690117.

It is an arithmetic number, because the mean of its divisors is an integer number (222690117).

Almost surely, 2^445380233 is an apocalyptic number.

It is an amenable number.

445380233 is a deficient number, since it is larger than the sum of its proper divisors (1).

445380233 is an equidigital number, since it uses as much as digits as its factorization.

445380233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 32.

The square root of 445380233 is about 21104.0335718080. The cubic root of 445380233 is about 763.6780581418.

The spelling of 445380233 in words is "four hundred forty-five million, three hundred eighty thousand, two hundred thirty-three".