406740 has 24 divisors (see below), whose sum is σ = 1139040. Its totient is φ = 108448.

The previous prime is 406739. The next prime is 406789. The reversal of 406740 is 47604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3330 + ... + 3449.

It is an arithmetic number, because the mean of its divisors is an integer number (47460).

2⁴⁰⁶⁷⁴⁰ is an apocalyptic number.

It is an amenable number.

406740 is an abundant number, since it is smaller than the sum of its proper divisors (732300).

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

406740 is a wasteful number, since it uses less digits than its factorization.

406740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6791 (or 6789 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 406740 is about 637.7617109862. The cubic root of 406740 is about 74.0921666299.

The spelling of 406740 in words is "four hundred six thousand, seven hundred forty".