1340906 has 24 divisors (see below), whose sum is σ = 2454240. Its totient is φ = 536760.

The previous prime is 1340903. The next prime is 1340929. The reversal of 1340906 is 6090431.

It is not an unprimeable number, because it can be changed into a prime (1340903) 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, 18851 + ... + 18921.

It is an arithmetic number, because the mean of its divisors is an integer number (102260).

2^1340906 is an apocalyptic number.

1340906 is a deficient number, since it is larger than the sum of its proper divisors (1113334).

1340906 is an equidigital number, since it uses as much as digits as its factorization.

1340906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 1340906 is about 1157.9749565513. The cubic root of 1340906 is about 110.2722183442.

The spelling of 1340906 in words is "one million, three hundred forty thousand, nine hundred six".