672065020 has 24 divisors (see below), whose sum is σ = 1539640368. Its totient is φ = 244387200.

The previous prime is 672065011. The next prime is 672065021. The reversal of 672065020 is 20560276.

It is a super-2 number, since 2×672065020² = 903342782215200800, 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 672065020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672065021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1527201 + ... + 1527640.

It is an arithmetic number, because the mean of its divisors is an integer number (64151682).

Almost surely, 2^672065020 is an apocalyptic number.

It is an amenable number.

672065020 is an abundant number, since it is smaller than the sum of its proper divisors (867575348).

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

672065020 is a wasteful number, since it uses less digits than its factorization.

672065020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3054861 (or 3054859 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 672065020 is about 25924.2168637743. The cubic root of 672065020 is about 875.9320767029.

The spelling of 672065020 in words is "six hundred seventy-two million, sixty-five thousand, twenty".