1828301989 has 2 divisors, whose sum is σ = 1828301990. Its totient is φ = 1828301988.

The previous prime is 1828301929. The next prime is 1828302031. The reversal of 1828301989 is 9891038281.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1503112900 + 325189089 = 38770^2 + 18033^2 .

It is a cyclic number.

It is not a de Polignac number, because 1828301989 - 2⁷ = 1828301861 is a prime.

It is a super-2 number, since 2×1828301989² = 6685376325962712242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1828301929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 914150994 + 914150995.

It is an arithmetic number, because the mean of its divisors is an integer number (914150995).

Almost surely, 2^1828301989 is an apocalyptic number.

It is an amenable number.

1828301989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1828301989 is an equidigital number, since it uses as much as digits as its factorization.

1828301989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 49.

The square root of 1828301989 is about 42758.6481194156. The cubic root of 1828301989 is about 1222.7827701129.

The spelling of 1828301989 in words is "one billion, eight hundred twenty-eight million, three hundred one thousand, nine hundred eighty-nine".