445570427 has 4 divisors (see below), whose sum is σ = 445722000. Its totient is φ = 445418856.

The previous prime is 445570397. The next prime is 445570439. The reversal of 445570427 is 724075544.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 445570427 - 2²⁶ = 378461563 is a prime.

It is a super-3 number, since 3×445570427³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445570487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71288 + ... + 77285.

It is an arithmetic number, because the mean of its divisors is an integer number (111430500).

Almost surely, 2^445570427 is an apocalyptic number.

445570427 is a deficient number, since it is larger than the sum of its proper divisors (151573).

445570427 is a wasteful number, since it uses less digits than its factorization.

445570427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151572.

The product of its (nonzero) digits is 156800, while the sum is 38.

The square root of 445570427 is about 21108.5391962589. The cubic root of 445570427 is about 763.7867490262.

The spelling of 445570427 in words is "four hundred forty-five million, five hundred seventy thousand, four hundred twenty-seven".