1442667738 has 32 divisors (see below), whose sum is σ = 3011504832. Its totient is φ = 460304000.

The previous prime is 1442667641. The next prime is 1442667841. The reversal of 1442667738 is 8377662441.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42288 + ... + 68363.

It is an arithmetic number, because the mean of its divisors is an integer number (94109526).

Almost surely, 2^1442667738 is an apocalyptic number.

1442667738 is an abundant number, since it is smaller than the sum of its proper divisors (1568837094).

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

1442667738 is a wasteful number, since it uses less digits than its factorization.

1442667738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110750.

The product of its digits is 1354752, while the sum is 48.

The square root of 1442667738 is about 37982.4661916522. The cubic root of 1442667738 is about 1129.9401482383.

The spelling of 1442667738 in words is "one billion, four hundred forty-two million, six hundred sixty-seven thousand, seven hundred thirty-eight".