1828185249 has 24 divisors (see below), whose sum is σ = 2719349920. Its totient is φ = 1091439360.

The previous prime is 1828185173. The next prime is 1828185277. The reversal of 1828185249 is 9425818281.

It is not a de Polignac number, because 1828185249 - 2¹² = 1828181153 is a prime.

It is a super-2 number, since 2×1828185249² = 6684522609322384002, which contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1828185198 and 1828185207.

It is not an unprimeable number, because it can be changed into a prime (1828185299) 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, 13264 + ... + 61905.

Almost surely, 2^1828185249 is an apocalyptic number.

It is an amenable number.

1828185249 is a deficient number, since it is larger than the sum of its proper divisors (891164671).

1828185249 is a wasteful number, since it uses less digits than its factorization.

1828185249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75261 (or 75250 counting only the distinct ones).

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

The square root of 1828185249 is about 42757.2829936609. The cubic root of 1828185249 is about 1222.7567440151.

The spelling of 1828185249 in words is "one billion, eight hundred twenty-eight million, one hundred eighty-five thousand, two hundred forty-nine".