672732522 has 192 divisors, whose sum is σ = 1889521920. Its totient is φ = 167961600.

The previous prime is 672732509. The next prime is 672732569. The reversal of 672732522 is 225237276.

672732522 is a `hidden beast` number, since 67 + 2 + 73 + 2 + 522 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6171804 + ... + 6171912.

It is an arithmetic number, because the mean of its divisors is an integer number (9841260).

Almost surely, 2^672732522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 672732522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (944760960).

672732522 is an abundant number, since it is smaller than the sum of its proper divisors (1216789398).

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

672732522 is a wasteful number, since it uses less digits than its factorization.

672732522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269 (or 266 counting only the distinct ones).

The product of its digits is 70560, while the sum is 36.

The square root of 672732522 is about 25937.0877702182. The cubic root of 672732522 is about 876.2219757108.

Adding to 672732522 its reverse (225237276), we get a palindrome (897969798).

The spelling of 672732522 in words is "six hundred seventy-two million, seven hundred thirty-two thousand, five hundred twenty-two".