1828189426 has 16 divisors (see below), whose sum is σ = 3210480000. Its totient is φ = 764399520.

The previous prime is 1828189423. The next prime is 1828189427. The reversal of 1828189426 is 6249818281.

It is a self number, because there is not a number n which added to its sum of digits gives 1828189426.

It is not an unprimeable number, because it can be changed into a prime (1828189421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1591926 + ... + 1593073.

It is an arithmetic number, because the mean of its divisors is an integer number (200655000).

Almost surely, 2^1828189426 is an apocalyptic number.

1828189426 is a deficient number, since it is larger than the sum of its proper divisors (1382290574).

1828189426 is a wasteful number, since it uses less digits than its factorization.

1828189426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3185049.

The product of its digits is 442368, while the sum is 49.

The square root of 1828189426 is about 42757.3318391127. The cubic root of 1828189426 is about 1222.7576752575.

The spelling of 1828189426 in words is "one billion, eight hundred twenty-eight million, one hundred eighty-nine thousand, four hundred twenty-six".