673281924 has 96 divisors (see below), whose sum is σ = 1845043200. Its totient is φ = 187125120.

The previous prime is 673281913. The next prime is 673281943. The reversal of 673281924 is 429182376.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 470442 + ... + 471870.

It is an arithmetic number, because the mean of its divisors is an integer number (19219200).

Almost surely, 2^673281924 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 673281924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (922521600).

673281924 is an abundant number, since it is smaller than the sum of its proper divisors (1171761276).

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

673281924 is a wasteful number, since it uses less digits than its factorization.

673281924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1593 (or 1591 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 673281924 is about 25947.6766589997. The cubic root of 673281924 is about 876.4604395387.

The spelling of 673281924 in words is "six hundred seventy-three million, two hundred eighty-one thousand, nine hundred twenty-four".