6840074 has 16 divisors (see below), whose sum is σ = 10542312. Its totient is φ = 3327168.

The previous prime is 6840073. The next prime is 6840083. The reversal of 6840074 is 4700486.

It can be written as a sum of positive squares in 4 ways, for example, as 6838225 + 1849 = 2615^2 + 43^2 .

It is a super-2 number, since 2×6840074² = 93573224650952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6840073) 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 7 ways as a sum of consecutive naturals, for example, 18152 + ... + 18524.

Almost surely, 2^6840074 is an apocalyptic number.

6840074 is a deficient number, since it is larger than the sum of its proper divisors (3702238).

6840074 is a wasteful number, since it uses less digits than its factorization.

6840074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 6840074 is about 2615.3535133897. The cubic root of 6840074 is about 189.8250837100.

The spelling of 6840074 in words is "six million, eight hundred forty thousand, seventy-four".