1439445422 has 8 divisors (see below), whose sum is σ = 2159632272. Its totient is φ = 719568000.

The previous prime is 1439445407. The next prime is 1439445431. The reversal of 1439445422 is 2245449341.

It is a happy number.

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

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, 65354 + ... + 84557.

It is an arithmetic number, because the mean of its divisors is an integer number (269954034).

Almost surely, 2^1439445422 is an apocalyptic number.

1439445422 is a deficient number, since it is larger than the sum of its proper divisors (720186850).

1439445422 is a wasteful number, since it uses less digits than its factorization.

1439445422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154714.

The product of its digits is 138240, while the sum is 38.

The square root of 1439445422 is about 37940.0240115897. The cubic root of 1439445422 is about 1129.0982499658.

The spelling of 1439445422 in words is "one billion, four hundred thirty-nine million, four hundred forty-five thousand, four hundred twenty-two".