1002283649 has 18 divisors (see below), whose sum is σ = 1074559446. Its totient is φ = 934727040.

The previous prime is 1002283621. The next prime is 1002283679. The reversal of 1002283649 is 9463822001.

It can be written as a sum of positive squares in 3 ways, for example, as 118113424 + 884170225 = 10868^2 + 29735^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1002283649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002283679) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1923509 + ... + 1924029.

It is an arithmetic number, because the mean of its divisors is an integer number (59697747).

Almost surely, 2^1002283649 is an apocalyptic number.

1002283649 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1002283649 is a deficient number, since it is larger than the sum of its proper divisors (72275797).

1002283649 is an frugal number, since it uses more digits than its factorization.

1002283649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705 (or 613 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 1002283649 is about 31658.8636719640. The cubic root of 1002283649 is about 1000.7606376171.

The spelling of 1002283649 in words is "one billion, two million, two hundred eighty-three thousand, six hundred forty-nine".