1002681730 has 8 divisors (see below), whose sum is σ = 1804827132. Its totient is φ = 401072688.

The previous prime is 1002681721. The next prime is 1002681731. The reversal of 1002681730 is 371862001.

It can be written as a sum of positive squares in 2 ways, for example, as 1002545569 + 136161 = 31663^2 + 369^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1002681731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50134077 + ... + 50134096.

Almost surely, 2^1002681730 is an apocalyptic number.

1002681730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1002681730 is a deficient number, since it is larger than the sum of its proper divisors (802145402).

1002681730 is a wasteful number, since it uses less digits than its factorization.

1002681730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100268180.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 1002681730 is about 31665.1500864910. The cubic root of 1002681730 is about 1000.8931121133.

The spelling of 1002681730 in words is "one billion, two million, six hundred eighty-one thousand, seven hundred thirty".