404011420 has 24 divisors (see below), whose sum is σ = 850802400. Its totient is φ = 161151552.

The previous prime is 404011379. The next prime is 404011429. The reversal of 404011420 is 24110404.

It is a junction number, because it is equal to n+sod(n) for n = 404011394 and 404011403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404011429) 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, 20955 + ... + 35314.

It is an arithmetic number, because the mean of its divisors is an integer number (35450100).

Almost surely, 2^404011420 is an apocalyptic number.

It is an amenable number.

404011420 is an abundant number, since it is smaller than the sum of its proper divisors (446790980).

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

404011420 is a wasteful number, since it uses less digits than its factorization.

404011420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56637 (or 56635 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 404011420 is about 20100.0353233520. The cubic root of 404011420 is about 739.2611446855.

Adding to 404011420 its reverse (24110404), we get a palindrome (428121824).

The spelling of 404011420 in words is "four hundred four million, eleven thousand, four hundred twenty".