8127442 has 4 divisors (see below), whose sum is σ = 12191166. Its totient is φ = 4063720.

The previous prime is 8127437. The next prime is 8127451. The reversal of 8127442 is 2447218.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4626801 + 3500641 = 2151^2 + 1871^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 8127442.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2031859 + ... + 2031862.

Almost surely, 2^8127442 is an apocalyptic number.

8127442 is a deficient number, since it is larger than the sum of its proper divisors (4063724).

8127442 is a wasteful number, since it uses less digits than its factorization.

8127442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4063723.

The product of its digits is 3584, while the sum is 28.

The square root of 8127442 is about 2850.8668857034. The cubic root of 8127442 is about 201.0564266552.

The spelling of 8127442 in words is "eight million, one hundred twenty-seven thousand, four hundred forty-two".