445464407 has 2 divisors, whose sum is σ = 445464408. Its totient is φ = 445464406.

The previous prime is 445464343. The next prime is 445464431. The reversal of 445464407 is 704464544.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 445464407 - 2⁶ = 445464343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445461407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222732203 + 222732204.

It is an arithmetic number, because the mean of its divisors is an integer number (222732204).

Almost surely, 2^445464407 is an apocalyptic number.

445464407 is a deficient number, since it is larger than the sum of its proper divisors (1).

445464407 is an equidigital number, since it uses as much as digits as its factorization.

445464407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 215040, while the sum is 38.

The square root of 445464407 is about 21106.0277409085. The cubic root of 445464407 is about 763.7261651920.

The spelling of 445464407 in words is "four hundred forty-five million, four hundred sixty-four thousand, four hundred seven".