1442225378 has 24 divisors (see below), whose sum is σ = 2379841884. Its totient is φ = 655017440.

The previous prime is 1442225371. The next prime is 1442225383. The reversal of 1442225378 is 8735222441.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1312105729 + 130119649 = 36223^2 + 11407^2 .

It is not an unprimeable number, because it can be changed into a prime (1442225371) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 534200 + ... + 536892.

Almost surely, 2^1442225378 is an apocalyptic number.

1442225378 is a deficient number, since it is larger than the sum of its proper divisors (937616506).

1442225378 is a wasteful number, since it uses less digits than its factorization.

1442225378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4930 (or 4919 counting only the distinct ones).

The product of its digits is 107520, while the sum is 38.

The square root of 1442225378 is about 37976.6425319564. The cubic root of 1442225378 is about 1129.8246466095.

The spelling of 1442225378 in words is "one billion, four hundred forty-two million, two hundred twenty-five thousand, three hundred seventy-eight".