445745073 has 8 divisors (see below), whose sum is σ = 625607200. Its totient is φ = 281523168.

The previous prime is 445745057. The next prime is 445745087. The reversal of 445745073 is 370547544.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 445745073 - 2⁴ = 445745057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445745033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3909988 + ... + 3910101.

It is an arithmetic number, because the mean of its divisors is an integer number (78200900).

Almost surely, 2^445745073 is an apocalyptic number.

It is an amenable number.

445745073 is a deficient number, since it is larger than the sum of its proper divisors (179862127).

445745073 is a wasteful number, since it uses less digits than its factorization.

445745073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7820111.

The product of its (nonzero) digits is 235200, while the sum is 39.

The square root of 445745073 is about 21112.6756475820. The cubic root of 445745073 is about 763.8865273987.

The spelling of 445745073 in words is "four hundred forty-five million, seven hundred forty-five thousand, seventy-three".