4321020 has 48 divisors (see below), whose sum is σ = 13200768. Its totient is φ = 1047360.

The previous prime is 4321019. The next prime is 4321049. The reversal of 4321020 is 201234.

4321020 = T₄₂₁ + T₄₂₂ + ... + T₄₆₄.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 4320987 and 4321005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2614 + ... + 3933.

It is an arithmetic number, because the mean of its divisors is an integer number (275016).

Almost surely, 2^4321020 is an apocalyptic number.

It is an amenable number.

4321020 is an abundant number, since it is smaller than the sum of its proper divisors (8879748).

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

4321020 is a wasteful number, since it uses less digits than its factorization.

4321020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6570 (or 6568 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 4321020 is about 2078.7063284649. The cubic root of 4321020 is about 162.8778740702.

Adding to 4321020 its reverse (201234), we get a palindrome (4522254).

The spelling of 4321020 in words is "four million, three hundred twenty-one thousand, twenty".