4145020 has 48 divisors (see below), whose sum is σ = 9652608. Its totient is φ = 1482560.

The previous prime is 4145017. The next prime is 4145023. The reversal of 4145020 is 205414.

It is an interprime number because it is at equal distance from previous prime (4145017) and next prime (4145023).

It is a junction number, because it is equal to n+sod(n) for n = 4144985 and 4145003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4145023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18147 + ... + 18373.

It is an arithmetic number, because the mean of its divisors is an integer number (201096).

Almost surely, 2^4145020 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 4145020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4826304).

4145020 is an abundant number, since it is smaller than the sum of its proper divisors (5507588).

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

4145020 is a wasteful number, since it uses less digits than its factorization.

4145020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330 (or 328 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 4145020 is about 2035.9322189110. The cubic root of 4145020 is about 160.6357517772.

The spelling of 4145020 in words is "four million, one hundred forty-five thousand, twenty".