1828339621 has 16 divisors (see below), whose sum is σ = 1963450368. Its totient is φ = 1698439600.

The previous prime is 1828339589. The next prime is 1828339627. The reversal of 1828339621 is 1269338281.

It is not a de Polignac number, because 1828339621 - 2⁵ = 1828339589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1828339627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135156 + ... + 148066.

It is an arithmetic number, because the mean of its divisors is an integer number (122715648).

Almost surely, 2^1828339621 is an apocalyptic number.

It is an amenable number.

1828339621 is a deficient number, since it is larger than the sum of its proper divisors (135110747).

1828339621 is a wasteful number, since it uses less digits than its factorization.

1828339621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13112.

The product of its digits is 124416, while the sum is 43.

The square root of 1828339621 is about 42759.0881684818. The cubic root of 1828339621 is about 1222.7911595813.

The spelling of 1828339621 in words is "one billion, eight hundred twenty-eight million, three hundred thirty-nine thousand, six hundred twenty-one".