1083245940 has 144 divisors (see below), whose sum is σ = 3920414400. Its totient is φ = 247593024.

The previous prime is 1083245939. The next prime is 1083245951. The reversal of 1083245940 is 495423801.

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

It is a junction number, because it is equal to n+sod(n) for n = 1083245895 and 1083245904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5991 + ... + 46929.

It is an arithmetic number, because the mean of its divisors is an integer number (27225100).

Almost surely, 2^1083245940 is an apocalyptic number.

1083245940 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 1083245940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1960207200).

1083245940 is an abundant number, since it is smaller than the sum of its proper divisors (2837168460).

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

1083245940 is a wasteful number, since it uses less digits than its factorization.

1083245940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40971 (or 40956 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 1083245940 is about 32912.7018034071. The cubic root of 1083245940 is about 1027.0124065126.

The spelling of 1083245940 in words is "one billion, eighty-three million, two hundred forty-five thousand, nine hundred forty".