920404 has 6 divisors (see below), whose sum is σ = 1610714. Its totient is φ = 460200.

The previous prime is 920399. The next prime is 920407. The reversal of 920404 is 404029.

It can be written as a sum of positive squares in only one way, i.e., 672400 + 248004 = 820^2 + 498^2 .

920404 is a modest number, since divided by 404 gives 92 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (920407) by changing a digit.

920404 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115047 + ... + 115054.

2⁹²⁰⁴⁰⁴ is an apocalyptic number.

It is an amenable number.

920404 is a deficient number, since it is larger than the sum of its proper divisors (690310).

920404 is a wasteful number, since it uses less digits than its factorization.

920404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230105 (or 230103 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 920404 is about 959.3768811056. The cubic root of 920404 is about 97.2731169836.

The spelling of 920404 in words is "nine hundred twenty thousand, four hundred four".