1021340441 has 8 divisors (see below), whose sum is σ = 1114495200. Its totient is φ = 928236640.

The previous prime is 1021340417. The next prime is 1021340471. The reversal of 1021340441 is 1440431201.

1021340441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1021340441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021340401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37970 + ... + 59028.

It is an arithmetic number, because the mean of its divisors is an integer number (139311900).

Almost surely, 2^1021340441 is an apocalyptic number.

1021340441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1021340441 is a deficient number, since it is larger than the sum of its proper divisors (93154759).

1021340441 is a wasteful number, since it uses less digits than its factorization.

1021340441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25479.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1021340441 is about 31958.4173732055. The cubic root of 1021340441 is about 1007.0634702497.

Adding to 1021340441 its reverse (1440431201), we get a palindrome (2461771642).

The spelling of 1021340441 in words is "one billion, twenty-one million, three hundred forty thousand, four hundred forty-one".