1399450 has 24 divisors (see below), whose sum is σ = 2804508. Its totient is φ = 516480.

The previous prime is 1399441. The next prime is 1399469. The reversal of 1399450 is 549931.

It can be written as a sum of positive squares in 6 ways, for example, as 51529 + 1347921 = 227^2 + 1161^2 .

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 427 + ... + 1726.

2^1399450 is an apocalyptic number.

1399450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1399450 is an abundant number, since it is smaller than the sum of its proper divisors (1405058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1399450 is a wasteful number, since it uses less digits than its factorization.

1399450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2178 (or 2173 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 1399450 is about 1182.9835163687. The cubic root of 1399450 is about 111.8542427913.

It can be divided in two parts, 1399 and 450, that added together give a square (1849 = 43²).

The spelling of 1399450 in words is "one million, three hundred ninety-nine thousand, four hundred fifty".