404620 has 12 divisors (see below), whose sum is σ = 849744. Its totient is φ = 161840.

The previous prime is 404597. The next prime is 404671. The reversal of 404620 is 26404.

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 404594 and 404603.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10096 + ... + 10135.

It is an arithmetic number, because the mean of its divisors is an integer number (70812).

2⁴⁰⁴⁶²⁰ is an apocalyptic number.

It is an amenable number.

404620 is an abundant number, since it is smaller than the sum of its proper divisors (445124).

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

404620 is a wasteful number, since it uses less digits than its factorization.

404620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20240 (or 20238 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 404620 is about 636.0974768068. The cubic root of 404620 is about 73.9632152214.

It can be divided in two parts, 404 and 620, that added together give a 10-th power (1024 = 2¹⁰).

The spelling of 404620 in words is "four hundred four thousand, six hundred twenty".