8140742 has 4 divisors (see below), whose sum is σ = 12211116. Its totient is φ = 4070370.

The previous prime is 8140711. The next prime is 8140763. The reversal of 8140742 is 2470418.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2035184 + ... + 2035187.

It is an arithmetic number, because the mean of its divisors is an integer number (3052779).

Almost surely, 2^8140742 is an apocalyptic number.

8140742 is a deficient number, since it is larger than the sum of its proper divisors (4070374).

8140742 is a wasteful number, since it uses less digits than its factorization.

8140742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4070373.

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 8140742 is about 2853.1985560069. The cubic root of 8140742 is about 201.1660385587.

The spelling of 8140742 in words is "eight million, one hundred forty thousand, seven hundred forty-two".