1440420422 has 8 divisors (see below), whose sum is σ = 2469292176. Its totient is φ = 617323032.

The previous prime is 1440420403. The next prime is 1440420433. The reversal of 1440420422 is 2240240441.

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

It is a super-2 number, since 2×1440420422² = 4149621984229316168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51443573 + ... + 51443600.

It is an arithmetic number, because the mean of its divisors is an integer number (308661522).

Almost surely, 2^1440420422 is an apocalyptic number.

1440420422 is a deficient number, since it is larger than the sum of its proper divisors (1028871754).

1440420422 is a wasteful number, since it uses less digits than its factorization.

1440420422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102887182.

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 1440420422 is about 37952.8710639920. The cubic root of 1440420422 is about 1129.3531218108.

Adding to 1440420422 its reverse (2240240441), we get a palindrome (3680660863).

The spelling of 1440420422 in words is "one billion, four hundred forty million, four hundred twenty thousand, four hundred twenty-two".