147886442 has 12 divisors (see below), whose sum is σ = 243829698. Its totient is φ = 67221000.

The previous prime is 147886441. The next prime is 147886471. The reversal of 147886442 is 244688741.

147886442 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 133148521 + 14737921 = 11539^2 + 3839^2 .

It is a junction number, because it is equal to n+sod(n) for n = 147886393 and 147886402.

It is not an unprimeable number, because it can be changed into a prime (147886441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 305309 + ... + 305792.

Almost surely, 2^147886442 is an apocalyptic number.

147886442 is a deficient number, since it is larger than the sum of its proper divisors (95943256).

147886442 is a wasteful number, since it uses less digits than its factorization.

147886442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611125 (or 611114 counting only the distinct ones).

The product of its digits is 344064, while the sum is 44.

The square root of 147886442 is about 12160.8569599350. The cubic root of 147886442 is about 528.8219258808.

The spelling of 147886442 in words is "one hundred forty-seven million, eight hundred eighty-six thousand, four hundred forty-two".