1444004142 has 32 divisors (see below), whose sum is σ = 3474297600. Its totient is φ = 390858048.

The previous prime is 1444004117. The next prime is 1444004183. The reversal of 1444004142 is 2414004441.

It is a happy number.

It is a super-2 number, since 2×1444004142² = 4170295924226312328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 903967 + ... + 905562.

It is an arithmetic number, because the mean of its divisors is an integer number (108571800).

Almost surely, 2^1444004142 is an apocalyptic number.

1444004142 is an abundant number, since it is smaller than the sum of its proper divisors (2030293458).

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

1444004142 is a wasteful number, since it uses less digits than its factorization.

1444004142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1809560.

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 1444004142 is about 38000.0544999609. The cubic root of 1444004142 is about 1130.2889443049.

Adding to 1444004142 its reverse (2414004441), we get a palindrome (3858008583).

The spelling of 1444004142 in words is "one billion, four hundred forty-four million, four thousand, one hundred forty-two".