1423994 has 24 divisors (see below), whose sum is σ = 2529792. Its totient is φ = 595920.

The previous prime is 1423991. The next prime is 1423997. The reversal of 1423994 is 4993241.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1423991) and next prime (1423997).

It is a self number, because there is not a number n which added to its sum of digits gives 1423994.

It is not an unprimeable number, because it can be changed into a prime (1423991) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 3527 + ... + 3909.

It is an arithmetic number, because the mean of its divisors is an integer number (105408).

2^1423994 is an apocalyptic number.

1423994 is a deficient number, since it is larger than the sum of its proper divisors (1105798).

1423994 is a wasteful number, since it uses less digits than its factorization.

1423994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422 (or 409 counting only the distinct ones).

The product of its digits is 7776, while the sum is 32.

The square root of 1423994 is about 1193.3121972057. The cubic root of 1423994 is about 112.5043685546.

The spelling of 1423994 in words is "one million, four hundred twenty-three thousand, nine hundred ninety-four".