1198022616 has 128 divisors (see below), whose sum is σ = 3827366400. Its totient is φ = 340122240.

The previous prime is 1198022563. The next prime is 1198022647. The reversal of 1198022616 is 6162208911.

1198022616 is a `hidden beast` number, since 1 + 19 + 8 + 0 + 22 + 616 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 244026 + ... + 248886.

It is an arithmetic number, because the mean of its divisors is an integer number (29901300).

Almost surely, 2^1198022616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1198022616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1913683200).

1198022616 is an abundant number, since it is smaller than the sum of its proper divisors (2629343784).

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

1198022616 is a wasteful number, since it uses less digits than its factorization.

1198022616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5046 (or 5036 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 1198022616 is about 34612.4633044226. The cubic root of 1198022616 is about 1062.0745582689.

It can be divided in two parts, 11980 and 22616, that added together give a square (34596 = 186²).

The spelling of 1198022616 in words is "one billion, one hundred ninety-eight million, twenty-two thousand, six hundred sixteen".