3572820 has 72 divisors (see below), whose sum is σ = 11321856. Its totient is φ = 910272.

The previous prime is 3572819. The next prime is 3572857. The reversal of 3572820 is 282753.

3572820 is nontrivially palindromic in base 14.

3572820 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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, 3709 + ... + 4571.

It is an arithmetic number, because the mean of its divisors is an integer number (157248).

Almost surely, 2^3572820 is an apocalyptic number.

3572820 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3572820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5660928).

3572820 is an abundant number, since it is smaller than the sum of its proper divisors (7749036).

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

3572820 is a wasteful number, since it uses less digits than its factorization.

3572820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901 (or 896 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 3572820 is about 1890.1904665932. The cubic root of 3572820 is about 152.8752026044.

The spelling of 3572820 in words is "three million, five hundred seventy-two thousand, eight hundred twenty".