1528222444 has 12 divisors (see below), whose sum is σ = 3056444944. Its totient is φ = 654952464.

The previous prime is 1528222441. The next prime is 1528222481. The reversal of 1528222444 is 4442228251.

1528222444 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1528222441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27289659 + ... + 27289714.

Almost surely, 2^1528222444 is an apocalyptic number.

1528222444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1528222444 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1528222444 is a wasteful number, since it uses less digits than its factorization.

1528222444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54579384 (or 54579382 counting only the distinct ones).

The product of its digits is 40960, while the sum is 34.

The square root of 1528222444 is about 39092.4857741229. The cubic root of 1528222444 is about 1151.8489335008.

The spelling of 1528222444 in words is "one billion, five hundred twenty-eight million, two hundred twenty-two thousand, four hundred forty-four".