673142140 has 48 divisors (see below), whose sum is σ = 1544780160. Its totient is φ = 244354880.

The previous prime is 673142087. The next prime is 673142143. The reversal of 673142140 is 41241376.

It is a junction number, because it is equal to n+sod(n) for n = 673142099 and 673142108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673142143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142659 + ... + 147301.

It is an arithmetic number, because the mean of its divisors is an integer number (32182920).

Almost surely, 2^673142140 is an apocalyptic number.

It is an amenable number.

673142140 is an abundant number, since it is smaller than the sum of its proper divisors (871638020).

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

673142140 is a wasteful number, since it uses less digits than its factorization.

673142140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5322 (or 5320 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 673142140 is about 25944.9829446851. The cubic root of 673142140 is about 876.3997796470.

The spelling of 673142140 in words is "six hundred seventy-three million, one hundred forty-two thousand, one hundred forty".