8144742 has 16 divisors (see below), whose sum is σ = 16496640. Its totient is φ = 2680392.

The previous prime is 8144693. The next prime is 8144743. The reversal of 8144742 is 2474418.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8144743) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8118 + ... + 9065.

It is an arithmetic number, because the mean of its divisors is an integer number (1031040).

Almost surely, 2^8144742 is an apocalyptic number.

8144742 is an abundant number, since it is smaller than the sum of its proper divisors (8351898).

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

8144742 is a wasteful number, since it uses less digits than its factorization.

8144742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17267.

The product of its digits is 7168, while the sum is 30.

The square root of 8144742 is about 2853.8994376116. The cubic root of 8144742 is about 201.1989811905.

The spelling of 8144742 in words is "eight million, one hundred forty-four thousand, seven hundred forty-two".