4181420 has 12 divisors (see below), whose sum is σ = 8781024. Its totient is φ = 1672560.

The previous prime is 4181417. The next prime is 4181431. The reversal of 4181420 is 241814.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 209071 = 4181420 / (4 + 1 + 8 + 1 + 4 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 4181392 and 4181401.

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, 104516 + ... + 104555.

It is an arithmetic number, because the mean of its divisors is an integer number (731752).

Almost surely, 2^4181420 is an apocalyptic number.

It is an amenable number.

4181420 is an abundant number, since it is smaller than the sum of its proper divisors (4599604).

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

4181420 is a wasteful number, since it uses less digits than its factorization.

4181420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209080 (or 209078 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 4181420 is about 2044.8520728894. The cubic root of 4181420 is about 161.1045962046.

The spelling of 4181420 in words is "four million, one hundred eighty-one thousand, four hundred twenty".