1442400334 has 8 divisors (see below), whose sum is σ = 2257670160. Its totient is φ = 689843616.

The previous prime is 1442400319. The next prime is 1442400373. The reversal of 1442400334 is 4330042441.

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

It is a junction number, because it is equal to n+sod(n) for n = 1442400299 and 1442400308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15678219 + ... + 15678310.

It is an arithmetic number, because the mean of its divisors is an integer number (282208770).

Almost surely, 2^1442400334 is an apocalyptic number.

1442400334 is a deficient number, since it is larger than the sum of its proper divisors (815269826).

1442400334 is a wasteful number, since it uses less digits than its factorization.

1442400334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31356554.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 1442400334 is about 37978.9459306074. The cubic root of 1442400334 is about 1129.8703310107.

Adding to 1442400334 its reverse (4330042441), we get a palindrome (5772442775).

The spelling of 1442400334 in words is "one billion, four hundred forty-two million, four hundred thousand, three hundred thirty-four".