445696420 has 48 divisors (see below), whose sum is σ = 1010842560. Its totient is φ = 164094336.

The previous prime is 445696403. The next prime is 445696421. The reversal of 445696420 is 24696544.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (445696421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96279 + ... + 100801.

It is an arithmetic number, because the mean of its divisors is an integer number (21059220).

Almost surely, 2^445696420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 445696420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (505421280).

445696420 is an abundant number, since it is smaller than the sum of its proper divisors (565146140).

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

445696420 is a wasteful number, since it uses less digits than its factorization.

445696420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4924 (or 4922 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 40.

The square root of 445696420 is about 21111.5233936351. The cubic root of 445696420 is about 763.8587336920.

The spelling of 445696420 in words is "four hundred forty-five million, six hundred ninety-six thousand, four hundred twenty".