1868449122 has 12 divisors (see below), whose sum is σ = 4048306470. Its totient is φ = 622816368.

The previous prime is 1868449109. The next prime is 1868449127. The reversal of 1868449122 is 2219448681.

1868449122 is a `hidden beast` number, since 1 + 86 + 8 + 449 + 122 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1349019441 + 519429681 = 36729^2 + 22791^2 .

It is a super-2 number, since 2×1868449122² = 6982204243005141768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1868449127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51901347 + ... + 51901382.

Almost surely, 2^1868449122 is an apocalyptic number.

1868449122 is an abundant number, since it is smaller than the sum of its proper divisors (2179857348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1868449122 is a wasteful number, since it uses less digits than its factorization.

1868449122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103802737 (or 103802734 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 1868449122 is about 43225.5609795871. The cubic root of 1868449122 is about 1231.6682855081.

The spelling of 1868449122 in words is "one billion, eight hundred sixty-eight million, four hundred forty-nine thousand, one hundred twenty-two".