673494228 has 54 divisors (see below), whose sum is σ = 1871293242. Its totient is φ = 204087840.

The previous prime is 673494221. The next prime is 673494259. The reversal of 673494228 is 822494376.

It can be written as a sum of positive squares in only one way, i.e., 426752964 + 246741264 = 20658^2 + 15708^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673494221) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 72951 + ... + 81662.

Almost surely, 2^673494228 is an apocalyptic number.

It is an amenable number.

673494228 is an abundant number, since it is smaller than the sum of its proper divisors (1197799014).

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

673494228 is a wasteful number, since it uses less digits than its factorization.

673494228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154645 (or 154629 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 673494228 is about 25951.7673386612. The cubic root of 673494228 is about 876.5525537510.

The spelling of 673494228 in words is "six hundred seventy-three million, four hundred ninety-four thousand, two hundred twenty-eight".