6740406 has 24 divisors (see below), whose sum is σ = 14654640. Its totient is φ = 2239056.

The previous prime is 6740399. The next prime is 6740407. The reversal of 6740406 is 6040476.

It is a self number, because there is not a number n which added to its sum of digits gives 6740406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6740407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7476 + ... + 8328.

It is an arithmetic number, because the mean of its divisors is an integer number (610610).

Almost surely, 2^6740406 is an apocalyptic number.

6740406 is an abundant number, since it is smaller than the sum of its proper divisors (7914234).

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

6740406 is a wasteful number, since it uses less digits than its factorization.

6740406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1300 (or 1297 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 6740406 is about 2596.2291886503. The cubic root of 6740406 is about 188.8985766401.

The spelling of 6740406 in words is "six million, seven hundred forty thousand, four hundred six".