1020247930 has 48 divisors (see below), whose sum is σ = 1994437944. Its totient is φ = 375598080.

The previous prime is 1020247909. The next prime is 1020247937. The reversal of 1020247930 is 397420201.

It can be written as a sum of positive squares in 12 ways, for example, as 147695409 + 872552521 = 12153^2 + 29539^2 .

It is not an unprimeable number, because it can be changed into a prime (1020247937) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 771670 + ... + 772990.

Almost surely, 2^1020247930 is an apocalyptic number.

1020247930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1020247930 is a deficient number, since it is larger than the sum of its proper divisors (974190014).

1020247930 is a wasteful number, since it uses less digits than its factorization.

1020247930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1811 (or 1798 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 1020247930 is about 31941.3201042161. The cubic root of 1020247930 is about 1006.7042624196.

The spelling of 1020247930 in words is "one billion, twenty million, two hundred forty-seven thousand, nine hundred thirty".