1021440214 has 8 divisors (see below), whose sum is σ = 1558129320. Its totient is φ = 502063776.

The previous prime is 1021440193. The next prime is 1021440227. The reversal of 1021440214 is 4120441201.

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

It is a super-2 number, since 2×1021440214² = 2086680221552731592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1021440191 and 1021440200.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4328019 + ... + 4328254.

It is an arithmetic number, because the mean of its divisors is an integer number (194766165).

Almost surely, 2^1021440214 is an apocalyptic number.

1021440214 is a deficient number, since it is larger than the sum of its proper divisors (536689106).

1021440214 is an equidigital number, since it uses as much as digits as its factorization.

1021440214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8656334.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1021440214 is about 31959.9783166385. The cubic root of 1021440214 is about 1007.0962619510.

Adding to 1021440214 its reverse (4120441201), we get a palindrome (5141881415).

It can be divided in two parts, 10214402 and 14, that added together give a square (10214416 = 3196²).

The spelling of 1021440214 in words is "one billion, twenty-one million, four hundred forty thousand, two hundred fourteen".