1032786720 has 768 divisors, whose sum is σ = 4572288000. Its totient is φ = 216760320.

The previous prime is 1032786659. The next prime is 1032786757. The reversal of 1032786720 is 276872301.

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

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 25189900 + ... + 25189940.

It is an arithmetic number, because the mean of its divisors is an integer number (5953500).

Almost surely, 2^1032786720 is an apocalyptic number.

1032786720 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 1032786720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2286144000).

1032786720 is an abundant number, since it is smaller than the sum of its proper divisors (3539501280).

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

1032786720 is a wasteful number, since it uses less digits than its factorization.

1032786720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 75 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 1032786720 is about 32136.9992376388. Note that the first 3 decimals coincide. The cubic root of 1032786720 is about 1010.8115948261.

The spelling of 1032786720 in words is "one billion, thirty-two million, seven hundred eighty-six thousand, seven hundred twenty".