445750380 has 36 divisors (see below), whose sum is σ = 1352110032. Its totient is φ = 118866720.

The previous prime is 445750313. The next prime is 445750381. The reversal of 445750380 is 83057544.

445750380 is a `hidden beast` number, since 4 + 4 + 575 + 0 + 3 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (445750381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1238016 + ... + 1238375.

It is an arithmetic number, because the mean of its divisors is an integer number (37558612).

Almost surely, 2^445750380 is an apocalyptic number.

It is an amenable number.

445750380 is an abundant number, since it is smaller than the sum of its proper divisors (906359652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

445750380 is a wasteful number, since it uses less digits than its factorization.

445750380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2476406 (or 2476401 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 445750380 is about 21112.8013299988. The cubic root of 445750380 is about 763.8895589744.

The spelling of 445750380 in words is "four hundred forty-five million, seven hundred fifty thousand, three hundred eighty".