4445433420 has 72 divisors (see below), whose sum is σ = 13136873904. Its totient is φ = 1123051392.

The previous prime is 4445433407. The next prime is 4445433463. The reversal of 4445433420 is 243345444.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80959 + ... + 124278.

It is an arithmetic number, because the mean of its divisors is an integer number (182456582).

Almost surely, 2^4445433420 is an apocalyptic number.

It is an amenable number.

4445433420 is an abundant number, since it is smaller than the sum of its proper divisors (8691440484).

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

4445433420 is a wasteful number, since it uses less digits than its factorization.

4445433420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205287 (or 205266 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 33.

The square root of 4445433420 is about 66674.0835707548. The cubic root of 4445433420 is about 1644.2633250154.

Adding to 4445433420 its reverse (243345444), we get a palindrome (4688778864).

The spelling of 4445433420 in words is "four billion, four hundred forty-five million, four hundred thirty-three thousand, four hundred twenty".