1983352440 has 96 divisors (see below), whose sum is σ = 6115722480. Its totient is φ = 514556928.

The previous prime is 1983352439. The next prime is 1983352457. The reversal of 1983352440 is 442533891.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 158244 + ... + 170316.

Almost surely, 2^1983352440 is an apocalyptic number.

1983352440 is a gapful number since it is divisible by the number (10) 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 1983352440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3057861240).

1983352440 is an abundant number, since it is smaller than the sum of its proper divisors (4132370040).

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

1983352440 is a wasteful number, since it uses less digits than its factorization.

1983352440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12161 (or 12120 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 1983352440 is about 44534.8452338166. The cubic root of 1983352440 is about 1256.4155369099.

The spelling of 1983352440 in words is "one billion, nine hundred eighty-three million, three hundred fifty-two thousand, four hundred forty".