147444642 has 24 divisors (see below), whose sum is σ = 330480540. Its totient is φ = 47453280.

The previous prime is 147444637. The next prime is 147444653. The reversal of 147444642 is 246444741.

147444642 is a `hidden beast` number, since 1 + 4 + 7 + 4 + 4 + 4 + 642 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 146385801 + 1058841 = 12099^2 + 1029^2 .

It is a junction number, because it is equal to n+sod(n) for n = 147444597 and 147444606.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 140709 + ... + 141752.

Almost surely, 2^147444642 is an apocalyptic number.

147444642 is an abundant number, since it is smaller than the sum of its proper divisors (183035898).

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

147444642 is a wasteful number, since it uses less digits than its factorization.

147444642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282498 (or 282495 counting only the distinct ones).

The product of its digits is 86016, while the sum is 36.

The square root of 147444642 is about 12142.6785348209. The cubic root of 147444642 is about 528.2947949169.

Subtracting 147444642 from its reverse (246444741), we obtain a palindrome (99000099).

The spelling of 147444642 in words is "one hundred forty-seven million, four hundred forty-four thousand, six hundred forty-two".