1423898 has 32 divisors (see below), whose sum is σ = 2643840. Its totient is φ = 561600.

The previous prime is 1423897. The next prime is 1423901. The reversal of 1423898 is 8983241.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1423897) 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 15 ways as a sum of consecutive naturals, for example, 14048 + ... + 14148.

It is an arithmetic number, because the mean of its divisors is an integer number (82620).

2^1423898 is an apocalyptic number.

1423898 is a deficient number, since it is larger than the sum of its proper divisors (1219942).

1423898 is a wasteful number, since it uses less digits than its factorization.

1423898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182.

The product of its digits is 13824, while the sum is 35.

The square root of 1423898 is about 1193.2719723517. The cubic root of 1423898 is about 112.5018402991.

The spelling of 1423898 in words is "one million, four hundred twenty-three thousand, eight hundred ninety-eight".