1828189425 has 24 divisors (see below), whose sum is σ = 3104303296. Its totient is φ = 948680640.

The previous prime is 1828189423. The next prime is 1828189427. The reversal of 1828189425 is 5249818281.

It is an interprime number because it is at equal distance from previous prime (1828189423) and next prime (1828189427).

It is not a de Polignac number, because 1828189425 - 2¹ = 1828189423 is a prime.

It is a Duffinian number.

It is a Curzon number.

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 23 ways as a sum of consecutive naturals, for example, 326629 + ... + 332178.

Almost surely, 2^1828189425 is an apocalyptic number.

1828189425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1828189425 is a deficient number, since it is larger than the sum of its proper divisors (1276113871).

1828189425 is a wasteful number, since it uses less digits than its factorization.

1828189425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658857 (or 658852 counting only the distinct ones).

The product of its digits is 368640, while the sum is 48.

The square root of 1828189425 is about 42757.3318274188. The cubic root of 1828189425 is about 1222.7576750346.

The spelling of 1828189425 in words is "one billion, eight hundred twenty-eight million, one hundred eighty-nine thousand, four hundred twenty-five".