447073380 has 72 divisors (see below), whose sum is σ = 1460447352. Its totient is φ = 110048256.

The previous prime is 447073373. The next prime is 447073387. The reversal of 447073380 is 83370744.

It is an interprime number because it is at equal distance from previous prime (447073373) and next prime (447073387).

It can be written as a sum of positive squares in 4 ways, for example, as 83942244 + 363131136 = 9162^2 + 19056^2 .

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 (447073387) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 93189 + ... + 97868.

It is an arithmetic number, because the mean of its divisors is an integer number (20283991).

Almost surely, 2^447073380 is an apocalyptic number.

It is an amenable number.

447073380 is an abundant number, since it is smaller than the sum of its proper divisors (1013373972).

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

447073380 is a wasteful number, since it uses less digits than its factorization.

447073380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191085 (or 191080 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 36.

The square root of 447073380 is about 21144.1098181030. The cubic root of 447073380 is about 764.6445612669.

The spelling of 447073380 in words is "four hundred forty-seven million, seventy-three thousand, three hundred eighty".