1421444522 has 8 divisors (see below), whose sum is σ = 2132586372. Its totient is φ = 710582400.

The previous prime is 1421444513. The next prime is 1421444569. The reversal of 1421444522 is 2254441241.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1401828481 + 19616041 = 37441^2 + 4429^2 .

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

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, 56729 + ... + 77852.

Almost surely, 2^1421444522 is an apocalyptic number.

1421444522 is a deficient number, since it is larger than the sum of its proper divisors (711141850).

1421444522 is a wasteful number, since it uses less digits than its factorization.

1421444522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139864.

The product of its digits is 10240, while the sum is 29.

The square root of 1421444522 is about 37702.0493076968. The cubic root of 1421444522 is about 1124.3718691416.

Adding to 1421444522 its reverse (2254441241), we get a palindrome (3675885763).

The spelling of 1421444522 in words is "one billion, four hundred twenty-one million, four hundred forty-four thousand, five hundred twenty-two".