1399466 has 4 divisors (see below), whose sum is σ = 2099202. Its totient is φ = 699732.

The previous prime is 1399441. The next prime is 1399469. The reversal of 1399466 is 6649931.

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., 1164241 + 235225 = 1079^2 + 485^2 .

It is a Curzon number.

It is a plaindrome in base 4 and base 16.

It is a zygodrome in base 4.

It is not an unprimeable number, because it can be changed into a prime (1399469) 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 as a sum of consecutive naturals, namely, 349865 + ... + 349868.

2^1399466 is an apocalyptic number.

1399466 is a deficient number, since it is larger than the sum of its proper divisors (699736).

1399466 is an equidigital number, since it uses as much as digits as its factorization.

1399466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699735.

The product of its digits is 34992, while the sum is 38.

The square root of 1399466 is about 1182.9902789119. The cubic root of 1399466 is about 111.8546690685.

The spelling of 1399466 in words is "one million, three hundred ninety-nine thousand, four hundred sixty-six".