1618370632 has 16 divisors (see below), whose sum is σ = 3061300140. Its totient is φ = 802023936.

The previous prime is 1618370627. The next prime is 1618370647. The reversal of 1618370632 is 2360738161.

It can be written as a sum of positive squares in 2 ways, for example, as 1299890916 + 318479716 = 36054^2 + 17846^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1618370591 and 1618370600.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 894213 + ... + 896020.

Almost surely, 2^1618370632 is an apocalyptic number.

It is an amenable number.

1618370632 is a deficient number, since it is larger than the sum of its proper divisors (1442929508).

1618370632 is a wasteful number, since it uses less digits than its factorization.

1618370632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1790352 (or 1790348 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 1618370632 is about 40228.9775162134. The cubic root of 1618370632 is about 1174.0664096467.

The spelling of 1618370632 in words is "one billion, six hundred eighteen million, three hundred seventy thousand, six hundred thirty-two".