1442238401 has 8 divisors (see below), whose sum is σ = 1532515464. Its totient is φ = 1352565760.

The previous prime is 1442238397. The next prime is 1442238409. The reversal of 1442238401 is 1048322441.

It can be written as a sum of positive squares in 4 ways, for example, as 924220801 + 518017600 = 30401^2 + 22760^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1442238401 - 2² = 1442238397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1442238409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146180 + ... + 155733.

It is an arithmetic number, because the mean of its divisors is an integer number (191564433).

Almost surely, 2^1442238401 is an apocalyptic number.

It is an amenable number.

1442238401 is a deficient number, since it is larger than the sum of its proper divisors (90277063).

1442238401 is a wasteful number, since it uses less digits than its factorization.

1442238401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302211.

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 1442238401 is about 37976.8139922243. The cubic root of 1442238401 is about 1129.8280472944.

The spelling of 1442238401 in words is "one billion, four hundred forty-two million, two hundred thirty-eight thousand, four hundred one".