920444028 has 36 divisors (see below), whose sum is σ = 2498349672. Its totient is φ = 262983840.

The previous prime is 920444027. The next prime is 920444029. The reversal of 920444028 is 820444029.

It is an interprime number because it is at equal distance from previous prime (920444027) and next prime (920444029).

It is a self number, because there is not a number n which added to its sum of digits gives 920444028.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (920444027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 782103 + ... + 783278.

It is an arithmetic number, because the mean of its divisors is an integer number (69398602).

Almost surely, 2^920444028 is an apocalyptic number.

920444028 is a gapful number since it is divisible by the number (98) formed by its first and last digit.

It is an amenable number.

920444028 is an abundant number, since it is smaller than the sum of its proper divisors (1577905644).

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

920444028 is a wasteful number, since it uses less digits than its factorization.

920444028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1565402 (or 1565393 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 920444028 is about 30338.8204780608. The cubic root of 920444028 is about 972.7452708612.

Subtracting from 920444028 its reverse (820444029), we obtain a palindrome (99999999).

The spelling of 920444028 in words is "nine hundred twenty million, four hundred forty-four thousand, twenty-eight".