673401400 has 48 divisors (see below), whose sum is σ = 1789327440. Its totient is φ = 230880000.

The previous prime is 673401367. The next prime is 673401403. The reversal of 673401400 is 4104376.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673401403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 239101 + ... + 241900.

It is an arithmetic number, because the mean of its divisors is an integer number (37277655).

Almost surely, 2^673401400 is an apocalyptic number.

It is an amenable number.

673401400 is an abundant number, since it is smaller than the sum of its proper divisors (1115926040).

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

673401400 is a wasteful number, since it uses less digits than its factorization.

673401400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481024 (or 481015 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 673401400 is about 25949.9788053863. The cubic root of 673401400 is about 876.5122800285.

Adding to 673401400 its reverse (4104376), we get a palindrome (677505776).

The spelling of 673401400 in words is "six hundred seventy-three million, four hundred one thousand, four hundred".