1442625705 has 24 divisors (see below), whose sum is σ = 2558707008. Its totient is φ = 751506336.

The previous prime is 1442625689. The next prime is 1442625733. The reversal of 1442625705 is 5075262441.

It is a happy number.

It is not a de Polignac number, because 1442625705 - 2⁴ = 1442625689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1442625705.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 370837 + ... + 374706.

It is an arithmetic number, because the mean of its divisors is an integer number (106612792).

Almost surely, 2^1442625705 is an apocalyptic number.

1442625705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1442625705 is a deficient number, since it is larger than the sum of its proper divisors (1116081303).

1442625705 is a wasteful number, since it uses less digits than its factorization.

1442625705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745597 (or 745594 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 1442625705 is about 37981.9128665211. The cubic root of 1442625705 is about 1129.9291743011.

The spelling of 1442625705 in words is "one billion, four hundred forty-two million, six hundred twenty-five thousand, seven hundred five".