4372020 has 72 divisors (see below), whose sum is σ = 13444704. Its totient is φ = 1149888.

The previous prime is 4372019. The next prime is 4372037. The reversal of 4372020 is 202734.

4372020 = T₁₈₄ + T₁₈₅ + ... + T₃₁₈.

It is a happy number.

It is a super-2 number, since 2×4372020² = 38229117760800, which contains 22 as substring.

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

It is a d-powerful number, because it can be written as 4¹¹ + 3¹¹ + 7² + 2³ + 0 + 2⁹ + 0 .

It is a junction number, because it is equal to n+sod(n) for n = 4371984 and 4372002.

It is a congruent number.

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, 19147 + ... + 19373.

It is an arithmetic number, because the mean of its divisors is an integer number (186732).

Almost surely, 2^4372020 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 4372020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6722352).

4372020 is an abundant number, since it is smaller than the sum of its proper divisors (9072684).

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

4372020 is a wasteful number, since it uses less digits than its factorization.

4372020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349 (or 344 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 4372020 is about 2090.9375887386. The cubic root of 4372020 is about 163.5161726841.

Adding to 4372020 its reverse (202734), we get a palindrome (4574754).

The spelling of 4372020 in words is "four million, three hundred seventy-two thousand, twenty".