1442423994 has 16 divisors (see below), whose sum is σ = 3147107040. Its totient is φ = 437098160.

The previous prime is 1442423951. The next prime is 1442424019. The reversal of 1442423994 is 4993242441.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10927389 + ... + 10927520.

It is an arithmetic number, because the mean of its divisors is an integer number (196694190).

Almost surely, 2^1442423994 is an apocalyptic number.

1442423994 is an abundant number, since it is smaller than the sum of its proper divisors (1704683046).

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

1442423994 is a wasteful number, since it uses less digits than its factorization.

1442423994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21854925.

The product of its digits is 248832, while the sum is 42.

The square root of 1442423994 is about 37979.2574177010. The cubic root of 1442423994 is about 1129.8765088115.

The spelling of 1442423994 in words is "one billion, four hundred forty-two million, four hundred twenty-three thousand, nine hundred ninety-four".