723481426 has 4 divisors (see below), whose sum is σ = 1085222142.
Its totient is φ = 361740712.
The previous prime is 723481417. The next prime is 723481439. The reversal of 723481426 is 624184327.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in only one way, i.e., 667964025 + 55517401 = 25845^2 + 7451^2
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180870355 + ... + 180870358.
Almost surely, 2723481426 is an apocalyptic number.
723481426 is a deficient number, since it is larger than the sum of its proper divisors (361740716).
723481426 is a wasteful number, since it uses less digits than its factorization.
723481426 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 361740715.
The product of its digits is 64512, while the sum is 37.
The square root of 723481426 is about 26897.6100425298.
The cubic root of 723481426 is about 897.7232270888.
The spelling of 723481426 in words is "seven hundred twenty-three million, four hundred eighty-one thousand, four hundred twenty-six".