142426444 has 6 divisors (see below), whose sum is σ = 249246284. Its totient is φ = 71213220.

The previous prime is 142426441. The next prime is 142426457. The reversal of 142426444 is 444624241.

It is not an unprimeable number, because it can be changed into a prime (142426441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17803302 + ... + 17803309.

Almost surely, 2^142426444 is an apocalyptic number.

It is an amenable number.

142426444 is a deficient number, since it is larger than the sum of its proper divisors (106819840).

142426444 is a wasteful number, since it uses less digits than its factorization.

142426444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35606615 (or 35606613 counting only the distinct ones).

The product of its digits is 24576, while the sum is 31.

The square root of 142426444 is about 11934.2550668234. The cubic root of 142426444 is about 522.2320767988.

The spelling of 142426444 in words is "one hundred forty-two million, four hundred twenty-six thousand, four hundred forty-four".