1423081918 has 8 divisors (see below), whose sum is σ = 2135026080. Its totient is φ = 711406560.

The previous prime is 1423081843. The next prime is 1423081927. The reversal of 1423081918 is 8191803241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53398 + ... + 75481.

It is an arithmetic number, because the mean of its divisors is an integer number (266878260).

Almost surely, 2^1423081918 is an apocalyptic number.

1423081918 is a deficient number, since it is larger than the sum of its proper divisors (711944162).

1423081918 is a wasteful number, since it uses less digits than its factorization.

1423081918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134402.

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 1423081918 is about 37723.7580047375. The cubic root of 1423081918 is about 1124.8034337721.

The spelling of 1423081918 in words is "one billion, four hundred twenty-three million, eighty-one thousand, nine hundred eighteen".