672428874 has 128 divisors (see below), whose sum is σ = 1588543488. Its totient is φ = 188052480.

The previous prime is 672428873. The next prime is 672428893. The reversal of 672428874 is 478824276.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (672428873) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5950642 + ... + 5950754.

It is an arithmetic number, because the mean of its divisors is an integer number (12410496).

Almost surely, 2^672428874 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 672428874, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (794271744).

672428874 is an abundant number, since it is smaller than the sum of its proper divisors (916114614).

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

672428874 is a wasteful number, since it uses less digits than its factorization.

672428874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292.

The product of its digits is 1204224, while the sum is 48.

The square root of 672428874 is about 25931.2335610938. The cubic root of 672428874 is about 876.0901238566.

The spelling of 672428874 in words is "six hundred seventy-two million, four hundred twenty-eight thousand, eight hundred seventy-four".