1628484081 has 16 divisors (see below), whose sum is σ = 2532144000. Its totient is φ = 930561744.

The previous prime is 1628484079. The next prime is 1628484083. The reversal of 1628484081 is 1804848261.

It is an interprime number because it is at equal distance from previous prime (1628484079) and next prime (1628484083).

It is not a de Polignac number, because 1628484081 - 2¹ = 1628484079 is a prime.

It is a super-2 number, since 2×1628484081² = 5303920804140829122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1628484083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 790266 + ... + 792323.

It is an arithmetic number, because the mean of its divisors is an integer number (158259000).

Almost surely, 2^1628484081 is an apocalyptic number.

It is an amenable number.

1628484081 is a deficient number, since it is larger than the sum of its proper divisors (903659919).

1628484081 is an equidigital number, since it uses as much as digits as its factorization.

1628484081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582613 (or 1582599 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 42.

The square root of 1628484081 is about 40354.4803088827. The cubic root of 1628484081 is about 1176.5069738724.

The spelling of 1628484081 in words is "one billion, six hundred twenty-eight million, four hundred eighty-four thousand, eighty-one".