1998826752 has 288 divisors, whose sum is σ = 6201659520. Its totient is φ = 566231040.

The previous prime is 1998826751. The next prime is 1998826759. The reversal of 1998826752 is 2576288991.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a junction number, because it is equal to n+sod(n) for n = 1998826692 and 1998826701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1998826751) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7777408 + ... + 7777664.

It is an arithmetic number, because the mean of its divisors is an integer number (21533540).

Almost surely, 2^1998826752 is an apocalyptic number.

1998826752 is a gapful number since it is divisible by the number (12) 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 1998826752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3100829760).

1998826752 is an abundant number, since it is smaller than the sum of its proper divisors (4202832768).

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

1998826752 is a wasteful number, since it uses less digits than its factorization.

1998826752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349 (or 335 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 57.

The square root of 1998826752 is about 44708.2403142866. The cubic root of 1998826752 is about 1259.6746350623.

The spelling of 1998826752 in words is "one billion, nine hundred ninety-eight million, eight hundred twenty-six thousand, seven hundred fifty-two".