1442881192 has 8 divisors (see below), whose sum is σ = 2705402250. Its totient is φ = 721440592.

The previous prime is 1442881189. The next prime is 1442881199. The reversal of 1442881192 is 2911882441.

It can be written as a sum of positive squares in only one way, i.e., 1266363396 + 176517796 = 35586^2 + 13286^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1442881192² = 4163812268454681728, 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 polite number, since it can be written as a sum of consecutive naturals, namely, 90180067 + ... + 90180082.

Almost surely, 2^1442881192 is an apocalyptic number.

It is an amenable number.

1442881192 is a deficient number, since it is larger than the sum of its proper divisors (1262521058).

1442881192 is a wasteful number, since it uses less digits than its factorization.

1442881192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180360155 (or 180360151 counting only the distinct ones).

The product of its digits is 36864, while the sum is 40.

The square root of 1442881192 is about 37985.2759895199. The cubic root of 1442881192 is about 1129.9958733240.

The spelling of 1442881192 in words is "one billion, four hundred forty-two million, eight hundred eighty-one thousand, one hundred ninety-two".