673813426 has 32 divisors (see below), whose sum is σ = 1197294336. Its totient is φ = 282704400.

The previous prime is 673813409. The next prime is 673813457. The reversal of 673813426 is 624318376.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24871 + ... + 44341.

It is an arithmetic number, because the mean of its divisors is an integer number (37415448).

Almost surely, 2^673813426 is an apocalyptic number.

673813426 is a deficient number, since it is larger than the sum of its proper divisors (523480910).

673813426 is a wasteful number, since it uses less digits than its factorization.

673813426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19519 (or 19497 counting only the distinct ones).

The product of its digits is 145152, while the sum is 40.

The square root of 673813426 is about 25957.9164418102. The cubic root of 673813426 is about 876.6910105831.

It can be divided in two parts, 67381 and 3426, that added together give a palindrome (70807).

The spelling of 673813426 in words is "six hundred seventy-three million, eight hundred thirteen thousand, four hundred twenty-six".