2207406 has 16 divisors (see below), whose sum is σ = 4443264. Its totient is φ = 731064.

The previous prime is 2207389. The next prime is 2207411. The reversal of 2207406 is 6047022.

It is a happy number.

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, 100 + ... + 2103.

It is an arithmetic number, because the mean of its divisors is an integer number (277704).

2^2207406 is an apocalyptic number.

2207406 is an abundant number, since it is smaller than the sum of its proper divisors (2235858).

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

2207406 is a wasteful number, since it uses less digits than its factorization.

2207406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2375.

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

The square root of 2207406 is about 1485.7341619550. The cubic root of 2207406 is about 130.2049233511.

It can be divided in two parts, 220 and 7406, that added together give a triangular number (7626 = T₁₂₃).

The spelling of 2207406 in words is "two million, two hundred seven thousand, four hundred six".