1828016021 has 8 divisors (see below), whose sum is σ = 1973082720. Its totient is φ = 1683585072.

The previous prime is 1828016009. The next prime is 1828016027. The reversal of 1828016021 is 1206108281.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1828016021 - 2²² = 1823821717 is a prime.

It is a super-3 number, since 3×1828016021³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1828016027) 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 7 ways as a sum of consecutive naturals, for example, 152951 + ... + 164468.

It is an arithmetic number, because the mean of its divisors is an integer number (246635340).

Almost surely, 2^1828016021 is an apocalyptic number.

It is an amenable number.

1828016021 is a deficient number, since it is larger than the sum of its proper divisors (145066699).

1828016021 is a wasteful number, since it uses less digits than its factorization.

1828016021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317875.

The product of its (nonzero) digits is 1536, while the sum is 29.

The square root of 1828016021 is about 42755.3040101459. The cubic root of 1828016021 is about 1222.7190142385.

The spelling of 1828016021 in words is "one billion, eight hundred twenty-eight million, sixteen thousand, twenty-one".