445334724 has 18 divisors (see below), whose sum is σ = 1125707310. Its totient is φ = 148444896.

The previous prime is 445334723. The next prime is 445334731. The reversal of 445334724 is 427433544.

It can be written as a sum of positive squares in only one way, i.e., 441000000 + 4334724 = 21000^2 + 2082^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 12370409 = 445334724 / (4 + 4 + 5 + 3 + 3 + 4 + 7 + 2 + 4).

It is not an unprimeable number, because it can be changed into a prime (445334723) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6185169 + ... + 6185240.

It is an arithmetic number, because the mean of its divisors is an integer number (62539295).

Almost surely, 2^445334724 is an apocalyptic number.

It is an amenable number.

445334724 is an abundant number, since it is smaller than the sum of its proper divisors (680372586).

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

445334724 is a wasteful number, since it uses less digits than its factorization.

445334724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12370419 (or 12370414 counting only the distinct ones).

The product of its digits is 161280, while the sum is 36.

The square root of 445334724 is about 21102.9553380563. The cubic root of 445334724 is about 763.6520463539.

The spelling of 445334724 in words is "four hundred forty-five million, three hundred thirty-four thousand, seven hundred twenty-four".