1442312172 has 36 divisors (see below), whose sum is σ = 4166680336. Its totient is φ = 412089120.

The previous prime is 1442312153. The next prime is 1442312189. The reversal of 1442312172 is 2712132441.

1442312172 is a `hidden beast` number, since 1 + 442 + 3 + 1 + 217 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2861479 + ... + 2861982.

Almost surely, 2^1442312172 is an apocalyptic number.

1442312172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1442312172 is an abundant number, since it is smaller than the sum of its proper divisors (2724368164).

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

1442312172 is a wasteful number, since it uses less digits than its factorization.

1442312172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5723478 (or 5723473 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 1442312172 is about 37977.7852434815. The cubic root of 1442312172 is about 1129.8473106662.

The spelling of 1442312172 in words is "one billion, four hundred forty-two million, three hundred twelve thousand, one hundred seventy-two".