445722028 has 6 divisors (see below), whose sum is σ = 780013556. Its totient is φ = 222861012.

The previous prime is 445722019. The next prime is 445722073. The reversal of 445722028 is 820227544.

It is a junction number, because it is equal to n+sod(n) for n = 445721984 and 445722002.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55715250 + ... + 55715257.

Almost surely, 2^445722028 is an apocalyptic number.

It is an amenable number.

445722028 is a deficient number, since it is larger than the sum of its proper divisors (334291528).

445722028 is a wasteful number, since it uses less digits than its factorization.

445722028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111430511 (or 111430509 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 34.

The square root of 445722028 is about 21112.1298783425. The cubic root of 445722028 is about 763.8733628723.

The spelling of 445722028 in words is "four hundred forty-five million, seven hundred twenty-two thousand, twenty-eight".