4129020 has 144 divisors (see below), whose sum is σ = 14938560. Its totient is φ = 903168.

The previous prime is 4129007. The next prime is 4129031. The reversal of 4129020 is 209214.

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

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 4128984 and 4129002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 36484 + ... + 36596.

It is an arithmetic number, because the mean of its divisors is an integer number (103740).

Almost surely, 2^4129020 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 4129020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7469280).

4129020 is an abundant number, since it is smaller than the sum of its proper divisors (10809540).

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

4129020 is a wasteful number, since it uses less digits than its factorization.

4129020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 4129020 is about 2031.9990157478. Note that the first 3 decimals coincide. The cubic root of 4129020 is about 160.4287977183.

The spelling of 4129020 in words is "four million, one hundred twenty-nine thousand, twenty".