6740140 has 24 divisors (see below), whose sum is σ = 15441552. Its totient is φ = 2450880.

The previous prime is 6740137. The next prime is 6740141. The reversal of 6740140 is 410476.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (6740141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15099 + ... + 15538.

It is an arithmetic number, because the mean of its divisors is an integer number (643398).

Almost surely, 2^6740140 is an apocalyptic number.

It is an amenable number.

6740140 is an abundant number, since it is smaller than the sum of its proper divisors (8701412).

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

6740140 is a wasteful number, since it uses less digits than its factorization.

6740140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30657 (or 30655 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 6740140 is about 2596.1779600020. The cubic root of 6740140 is about 188.8960917412.

The spelling of 6740140 in words is "six million, seven hundred forty thousand, one hundred forty".