672521200 has 120 divisors (see below), whose sum is σ = 1749988688. Its totient is φ = 246896640.

The previous prime is 672521183. The next prime is 672521203. The reversal of 672521200 is 2125276.

672521200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672521203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1471372 + ... + 1471828.

Almost surely, 2^672521200 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 672521200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (874994344).

672521200 is an abundant number, since it is smaller than the sum of its proper divisors (1077467488).

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

672521200 is a wasteful number, since it uses less digits than its factorization.

672521200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771 (or 760 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 672521200 is about 25933.0137083988. The cubic root of 672521200 is about 876.1302184046.

Adding to 672521200 its reverse (2125276), we get a palindrome (674646476).

The spelling of 672521200 in words is "six hundred seventy-two million, five hundred twenty-one thousand, two hundred".