1032720 has 80 divisors (see below), whose sum is σ = 3458112. Its totient is φ = 253440.

The previous prime is 1032709. The next prime is 1032721. The reversal of 1032720 is 272301.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 1032720.

It is not an unprimeable number, because it can be changed into a prime (1032721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2955 + ... + 3285.

2^1032720 is an apocalyptic number.

1032720 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 1032720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1729056).

1032720 is an abundant number, since it is smaller than the sum of its proper divisors (2425392).

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

1032720 is a wasteful number, since it uses less digits than its factorization.

1032720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360 (or 354 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 1032720 is about 1016.2283208020. The cubic root of 1032720 is about 101.0789827569.

The spelling of 1032720 in words is "one million, thirty-two thousand, seven hundred twenty".