1442163556 has 6 divisors (see below), whose sum is σ = 2523786230. Its totient is φ = 721081776.

The previous prime is 1442163553. The next prime is 1442163563. The reversal of 1442163556 is 6553612441.

It can be written as a sum of positive squares in only one way, i.e., 940403556 + 501760000 = 30666^2 + 22400^2 .

It is not an unprimeable number, because it can be changed into a prime (1442163553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180270441 + ... + 180270448.

Almost surely, 2^1442163556 is an apocalyptic number.

It is an amenable number.

1442163556 is a deficient number, since it is larger than the sum of its proper divisors (1081622674).

1442163556 is a wasteful number, since it uses less digits than its factorization.

1442163556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360540893 (or 360540891 counting only the distinct ones).

The product of its digits is 86400, while the sum is 37.

The square root of 1442163556 is about 37975.8285755558. The cubic root of 1442163556 is about 1129.8085028041.

Adding to 1442163556 its reverse (6553612441), we get a palindrome (7995775997).

It can be divided in two parts, 14421 and 63556, that added together give a palindrome (77977).

The spelling of 1442163556 in words is "one billion, four hundred forty-two million, one hundred sixty-three thousand, five hundred fifty-six".