445440477 has 16 divisors (see below), whose sum is σ = 629726400. Its totient is φ = 279105792.

The previous prime is 445440467. The next prime is 445440491. The reversal of 445440477 is 774044544.

It is a happy number.

It is not a de Polignac number, because 445440477 - 2⁸ = 445440221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445440407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33774 + ... + 45072.

It is an arithmetic number, because the mean of its divisors is an integer number (39357900).

Almost surely, 2^445440477 is an apocalyptic number.

It is an amenable number.

445440477 is a deficient number, since it is larger than the sum of its proper divisors (184285923).

445440477 is a wasteful number, since it uses less digits than its factorization.

445440477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12092.

The product of its (nonzero) digits is 250880, while the sum is 39.

The square root of 445440477 is about 21105.4608336326. The cubic root of 445440477 is about 763.7124893561.

The spelling of 445440477 in words is "four hundred forty-five million, four hundred forty thousand, four hundred seventy-seven".