1073286720 has 448 divisors, whose sum is σ = 4318894080. Its totient is φ = 248371200.

The previous prime is 1073286691. The next prime is 1073286733. The reversal of 1073286720 is 276823701.

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 63 ways as a sum of consecutive naturals, for example, 2185675 + ... + 2186165.

Almost surely, 2^1073286720 is an apocalyptic number.

1073286720 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 1073286720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2159447040).

1073286720 is an abundant number, since it is smaller than the sum of its proper divisors (3245607360).

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

1073286720 is a wasteful number, since it uses less digits than its factorization.

1073286720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551 (or 535 counting only the distinct ones).

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

The square root of 1073286720 is about 32761.0549280697. The cubic root of 1073286720 is about 1023.8553058899.

The spelling of 1073286720 in words is "one billion, seventy-three million, two hundred eighty-six thousand, seven hundred twenty".