1021326364 has 6 divisors (see below), whose sum is σ = 1787321144. Its totient is φ = 510663180.

The previous prime is 1021326349. The next prime is 1021326367. The reversal of 1021326364 is 4636231201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021326367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127665792 + ... + 127665799.

Almost surely, 2^1021326364 is an apocalyptic number.

It is an amenable number.

1021326364 is a deficient number, since it is larger than the sum of its proper divisors (765994780).

1021326364 is a wasteful number, since it uses less digits than its factorization.

1021326364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255331595 (or 255331593 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 1021326364 is about 31958.1971331300. The cubic root of 1021326364 is about 1007.0588434876.

Adding to 1021326364 its reverse (4636231201), we get a palindrome (5657557565).

The spelling of 1021326364 in words is "one billion, twenty-one million, three hundred twenty-six thousand, three hundred sixty-four".