1442887188 has 48 divisors (see below), whose sum is σ = 3556202496. Its totient is φ = 454618080.

The previous prime is 1442887133. The next prime is 1442887249. The reversal of 1442887188 is 8817882441.

It is a self number, because there is not a number n which added to its sum of digits gives 1442887188.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29106 + ... + 61097.

It is an arithmetic number, because the mean of its divisors is an integer number (74087552).

Almost surely, 2^1442887188 is an apocalyptic number.

It is an amenable number.

1442887188 is an abundant number, since it is smaller than the sum of its proper divisors (2113315308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1442887188 is a wasteful number, since it uses less digits than its factorization.

1442887188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90284 (or 90282 counting only the distinct ones).

The product of its digits is 917504, while the sum is 51.

The square root of 1442887188 is about 37985.3549147563. The cubic root of 1442887188 is about 1129.9974385824.

The spelling of 1442887188 in words is "one billion, four hundred forty-two million, eight hundred eighty-seven thousand, one hundred eighty-eight".