672020 has 12 divisors (see below), whose sum is σ = 1411284. Its totient is φ = 268800.

The previous prime is 672019. The next prime is 672029. The reversal of 672020 is 20276.

It can be written as a sum of positive squares in 2 ways, for example, as 85264 + 586756 = 292^2 + 766^2 .

It is a super-2 number, since 2×672020² = 903221760800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 672020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16781 + ... + 16820.

It is an arithmetic number, because the mean of its divisors is an integer number (117607).

2⁶⁷²⁰²⁰ is an apocalyptic number.

It is an amenable number.

672020 is an abundant number, since it is smaller than the sum of its proper divisors (739264).

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

672020 is a wasteful number, since it uses less digits than its factorization.

672020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33610 (or 33608 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 672020 is about 819.7682599369. The cubic root of 672020 is about 87.5912517413.

Adding to 672020 its reverse (20276), we get a palindrome (692296).

The spelling of 672020 in words is "six hundred seventy-two thousand, twenty".