1002720 has 48 divisors (see below), whose sum is σ = 3160080. Its totient is φ = 267264.

The previous prime is 1002719. The next prime is 1002721. The reversal of 1002720 is 272001.

1002720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1002719) and next prime (1002721).

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1002696 and 1002705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 565 + ... + 1524.

It is an arithmetic number, because the mean of its divisors is an integer number (65835).

2^1002720 is an apocalyptic number.

1002720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002720 is an abundant number, since it is smaller than the sum of its proper divisors (2157360).

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

1002720 is a wasteful number, since it uses less digits than its factorization.

1002720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2107 (or 2099 counting only the distinct ones).

The product of its (nonzero) digits is 28, while the sum is 12.

The square root of 1002720 is about 1001.3590764556. The cubic root of 1002720 is about 100.0905845862.

Adding to 1002720 its reverse (272001), we get a palindrome (1274721).

The spelling of 1002720 in words is "one million, two thousand, seven hundred twenty".