7420404 has 24 divisors (see below), whose sum is σ = 17912160. Its totient is φ = 2388064.

The previous prime is 7420397. The next prime is 7420409. The reversal of 7420404 is 4040247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7420409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10314 + ... + 11009.

It is an arithmetic number, because the mean of its divisors is an integer number (746340).

Almost surely, 2^7420404 is an apocalyptic number.

It is an amenable number.

7420404 is an abundant number, since it is smaller than the sum of its proper divisors (10491756).

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

7420404 is a wasteful number, since it uses less digits than its factorization.

7420404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21359 (or 21357 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 21.

The square root of 7420404 is about 2724.0418498988. The cubic root of 7420404 is about 195.0484560711.

The spelling of 7420404 in words is "seven million, four hundred twenty thousand, four hundred four".