742404 has 24 divisors (see below), whose sum is σ = 1865920. Its totient is φ = 228384.

The previous prime is 742393. The next prime is 742409. The reversal of 742404 is 404247.

It is not an unprimeable number, because it can be changed into a prime (742409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2224 + ... + 2535.

2⁷⁴²⁴⁰⁴ is an apocalyptic number.

It is an amenable number.

742404 is an abundant number, since it is smaller than the sum of its proper divisors (1123516).

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

742404 is a wasteful number, since it uses less digits than its factorization.

742404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4779 (or 4777 counting only the distinct ones).

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

The square root of 742404 is about 861.6286903301. The cubic root of 742404 is about 90.5482582990.

The spelling of 742404 in words is "seven hundred forty-two thousand, four hundred four", and thus it is an iban number.