1442484381 has 24 divisors (see below), whose sum is σ = 2093365344. Its totient is φ = 878307840.

The previous prime is 1442484359. The next prime is 1442484383. The reversal of 1442484381 is 1834842441.

It is not a de Polignac number, because 1442484381 - 2⁵ = 1442484349 is a prime.

It is a super-2 number, since 2×1442484381² = 4161522378857906322, which contains 22 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442484383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 364986 + ... + 368916.

It is an arithmetic number, because the mean of its divisors is an integer number (87223556).

Almost surely, 2^1442484381 is an apocalyptic number.

It is an amenable number.

1442484381 is a deficient number, since it is larger than the sum of its proper divisors (650880963).

1442484381 is an equidigital number, since it uses as much as digits as its factorization.

1442484381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4141 (or 4044 counting only the distinct ones).

The product of its digits is 98304, while the sum is 39.

The square root of 1442484381 is about 37980.0524091266. The cubic root of 1442484381 is about 1129.8922759971.

The spelling of 1442484381 in words is "one billion, four hundred forty-two million, four hundred eighty-four thousand, three hundred eighty-one".