920446228 has 24 divisors (see below), whose sum is σ = 1777000680. Its totient is φ = 414458880.

The previous prime is 920446171. The next prime is 920446243. The reversal of 920446228 is 822644029.

It can be written as a sum of positive squares in 4 ways, for example, as 47361924 + 873084304 = 6882^2 + 29548^2 .

It is a super-3 number, since 3×920446228³ (a number of 28 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213733 + ... + 217996.

It is an arithmetic number, because the mean of its divisors is an integer number (74041695).

Almost surely, 2^920446228 is an apocalyptic number.

It is an amenable number.

920446228 is a deficient number, since it is larger than the sum of its proper divisors (856554452).

920446228 is a wasteful number, since it uses less digits than its factorization.

920446228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431787 (or 431785 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 920446228 is about 30338.8567352166. The cubic root of 920446228 is about 972.7460458632.

The spelling of 920446228 in words is "nine hundred twenty million, four hundred forty-six thousand, two hundred twenty-eight".