1021068730 has 32 divisors (see below), whose sum is σ = 2015228160. Its totient is φ = 369405120.

The previous prime is 1021068709. The next prime is 1021068733. The reversal of 1021068730 is 378601201.

It is not an unprimeable number, because it can be changed into a prime (1021068733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1890 + ... + 45229.

It is an arithmetic number, because the mean of its divisors is an integer number (62975880).

Almost surely, 2^1021068730 is an apocalyptic number.

1021068730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021068730 is a deficient number, since it is larger than the sum of its proper divisors (994159430).

1021068730 is a wasteful number, since it uses less digits than its factorization.

1021068730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47334.

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

The square root of 1021068730 is about 31954.1660820620. The cubic root of 1021068730 is about 1006.9741580478.

Adding to 1021068730 its reverse (378601201), we get a palindrome (1399669931).

The spelling of 1021068730 in words is "one billion, twenty-one million, sixty-eight thousand, seven hundred thirty".