1642618336 has 48 divisors (see below), whose sum is σ = 3442279680. Its totient is φ = 768901120.

The previous prime is 1642618321. The next prime is 1642618349. The reversal of 1642618336 is 6338162461.

It is a congruent number.

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, 96000 + ... + 111808.

It is an arithmetic number, because the mean of its divisors is an integer number (71714160).

Almost surely, 2^1642618336 is an apocalyptic number.

1642618336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1642618336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1721139840).

1642618336 is an abundant number, since it is smaller than the sum of its proper divisors (1799661344).

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

1642618336 is a wasteful number, since it uses less digits than its factorization.

1642618336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16027 (or 16019 counting only the distinct ones).

The product of its digits is 124416, while the sum is 40.

The square root of 1642618336 is about 40529.2281693101. The cubic root of 1642618336 is about 1179.9009626734.

The spelling of 1642618336 in words is "one billion, six hundred forty-two million, six hundred eighteen thousand, three hundred thirty-six".