1442881194 has 16 divisors (see below), whose sum is σ = 2889139968. Its totient is φ = 480397472.

The previous prime is 1442881189. The next prime is 1442881199. The reversal of 1442881194 is 4911882441.

It is an interprime number because it is at equal distance from previous prime (1442881189) and next prime (1442881199).

It is a super-2 number, since 2×1442881194² = 4163812279997731272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1442881199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135162 + ... + 145445.

It is an arithmetic number, because the mean of its divisors is an integer number (180571248).

Almost surely, 2^1442881194 is an apocalyptic number.

1442881194 is an abundant number, since it is smaller than the sum of its proper divisors (1446258774).

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

1442881194 is a wasteful number, since it uses less digits than its factorization.

1442881194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281469.

The product of its digits is 73728, while the sum is 42.

The square root of 1442881194 is about 37985.2760158459. The cubic root of 1442881194 is about 1129.9958738461.

The spelling of 1442881194 in words is "one billion, four hundred forty-two million, eight hundred eighty-one thousand, one hundred ninety-four".