7404406 has 8 divisors (see below), whose sum is σ = 11181600. Its totient is φ = 3677208.

The previous prime is 7404389. The next prime is 7404409. The reversal of 7404406 is 6044047.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7404409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12126 + ... + 12721.

It is an arithmetic number, because the mean of its divisors is an integer number (1397700).

Almost surely, 2^7404406 is an apocalyptic number.

7404406 is a deficient number, since it is larger than the sum of its proper divisors (3777194).

7404406 is a wasteful number, since it uses less digits than its factorization.

7404406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24998.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 7404406 is about 2721.1038201436. The cubic root of 7404406 is about 194.9081838185.

The spelling of 7404406 in words is "seven million, four hundred four thousand, four hundred six".