1399210 has 8 divisors (see below), whose sum is σ = 2518596. Its totient is φ = 559680.

The previous prime is 1399201. The next prime is 1399213. The reversal of 1399210 is 129931.

It can be written as a sum of positive squares in 2 ways, for example, as 1121481 + 277729 = 1059^2 + 527^2 .

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

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1399213) 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 3 ways as a sum of consecutive naturals, for example, 69951 + ... + 69970.

2^1399210 is an apocalyptic number.

1399210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1399210 is a deficient number, since it is larger than the sum of its proper divisors (1119386).

1399210 is a wasteful number, since it uses less digits than its factorization.

1399210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139928.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 1399210 is about 1182.8820735813. The cubic root of 1399210 is about 111.8478482427.

The spelling of 1399210 in words is "one million, three hundred ninety-nine thousand, two hundred ten".