1209448682 has 16 divisors (see below), whose sum is σ = 1961337672. Its totient is φ = 556032000.

The previous prime is 1209448673. The next prime is 1209448699. The reversal of 1209448682 is 2868449021.

It can be written as a sum of positive squares in 4 ways, for example, as 1206103441 + 3345241 = 34729^2 + 1829^2 .

It is a super-2 number, since 2×1209448682² = 2925532228783074248, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83819 + ... + 97182.

Almost surely, 2^1209448682 is an apocalyptic number.

1209448682 is a deficient number, since it is larger than the sum of its proper divisors (751888990).

1209448682 is a wasteful number, since it uses less digits than its factorization.

1209448682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181273.

The product of its (nonzero) digits is 221184, while the sum is 44.

The square root of 1209448682 is about 34777.1287198929. The cubic root of 1209448682 is about 1065.4403703912.

The spelling of 1209448682 in words is "one billion, two hundred nine million, four hundred forty-eight thousand, six hundred eighty-two".