445372429 has 2 divisors, whose sum is σ = 445372430. Its totient is φ = 445372428.

The previous prime is 445372393. The next prime is 445372451. The reversal of 445372429 is 924273544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 308529225 + 136843204 = 17565^2 + 11698^2 .

It is a cyclic number.

It is not a de Polignac number, because 445372429 - 2²⁵ = 411817997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 445372391 and 445372400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445372129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222686214 + 222686215.

It is an arithmetic number, because the mean of its divisors is an integer number (222686215).

Almost surely, 2^445372429 is an apocalyptic number.

It is an amenable number.

445372429 is a deficient number, since it is larger than the sum of its proper divisors (1).

445372429 is an equidigital number, since it uses as much as digits as its factorization.

445372429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 40.

The square root of 445372429 is about 21103.8486774332. The cubic root of 445372429 is about 763.6735976996.

The spelling of 445372429 in words is "four hundred forty-five million, three hundred seventy-two thousand, four hundred twenty-nine".