4161420 has 72 divisors (see below), whose sum is σ = 12863760. Its totient is φ = 1088640.

The previous prime is 4161419. The next prime is 4161433. The reversal of 4161420 is 241614.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 4161393 and 4161402.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10791 + ... + 11169.

Almost surely, 2^4161420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4161420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6431880).

4161420 is an abundant number, since it is smaller than the sum of its proper divisors (8702340).

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

4161420 is a wasteful number, since it uses less digits than its factorization.

4161420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455 (or 450 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 4161420 is about 2039.9558818759. The cubic root of 4161420 is about 160.8473277188.

The spelling of 4161420 in words is "four million, one hundred sixty-one thousand, four hundred twenty".