445913423 has 4 divisors (see below), whose sum is σ = 447060120. Its totient is φ = 444766728.

The previous prime is 445913411. The next prime is 445913437. The reversal of 445913423 is 324319544.

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 445913423 - 2¹⁶ = 445847887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445913473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 572765 + ... + 573542.

It is an arithmetic number, because the mean of its divisors is an integer number (111765030).

Almost surely, 2^445913423 is an apocalyptic number.

445913423 is a deficient number, since it is larger than the sum of its proper divisors (1146697).

445913423 is a wasteful number, since it uses less digits than its factorization.

445913423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1146696.

The product of its digits is 51840, while the sum is 35.

The square root of 445913423 is about 21116.6622125752. The cubic root of 445913423 is about 763.9826840871.

The spelling of 445913423 in words is "four hundred forty-five million, nine hundred thirteen thousand, four hundred twenty-three".