1002730 has 16 divisors (see below), whose sum is σ = 1817640. Its totient is φ = 398272.

The previous prime is 1002721. The next prime is 1002739. The reversal of 1002730 is 372001.

It is an interprime number because it is at equal distance from previous prime (1002721) and next prime (1002739).

It can be written as a sum of positive squares in 4 ways, for example, as 1002001 + 729 = 1001^2 + 27^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1002730.

It is not an unprimeable number, because it can be changed into a prime (1002739) 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, 1716 + ... + 2224.

2^1002730 is an apocalyptic number.

1002730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1002730 is a deficient number, since it is larger than the sum of its proper divisors (814910).

1002730 is a wasteful number, since it uses less digits than its factorization.

1002730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713.

The product of its (nonzero) digits is 42, while the sum is 13.

The square root of 1002730 is about 1001.3640696570. The cubic root of 1002730 is about 100.0909173154.

Adding to 1002730 its reverse (372001), we get a palindrome (1374731).

The spelling of 1002730 in words is "one million, two thousand, seven hundred thirty".