672408528 has 160 divisors (see below), whose sum is σ = 1968624000. Its totient is φ = 195993600.

The previous prime is 672408523. The next prime is 672408563. The reversal of 672408528 is 825804276.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 672408528.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672408521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1926498 + ... + 1926846.

It is an arithmetic number, because the mean of its divisors is an integer number (12303900).

Almost surely, 2^672408528 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 672408528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (984312000).

672408528 is an abundant number, since it is smaller than the sum of its proper divisors (1296215472).

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

672408528 is a wasteful number, since it uses less digits than its factorization.

672408528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501 (or 495 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 672408528 is about 25930.8412512977. The cubic root of 672408528 is about 876.0812876758.

The spelling of 672408528 in words is "six hundred seventy-two million, four hundred eight thousand, five hundred twenty-eight".