673985130 has 128 divisors (see below), whose sum is σ = 2000388096. Its totient is φ = 141523200.

The previous prime is 673985099. The next prime is 673985131. The reversal of 673985130 is 31589376.

It is a super-2 number, since 2×673985130² = 908511910922233800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (673985131) 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, 739375 + ... + 740285.

It is an arithmetic number, because the mean of its divisors is an integer number (15628032).

Almost surely, 2^673985130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 673985130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1000194048).

673985130 is an abundant number, since it is smaller than the sum of its proper divisors (1326402966).

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

673985130 is a wasteful number, since it uses less digits than its factorization.

673985130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212.

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 673985130 is about 25961.2235844153. The cubic root of 673985130 is about 876.7654716346.

The spelling of 673985130 in words is "six hundred seventy-three million, nine hundred eighty-five thousand, one hundred thirty".