1399946 has 8 divisors (see below), whose sum is σ = 2172420. Its totient is φ = 675808.

The previous prime is 1399943. The next prime is 1399963. The reversal of 1399946 is 6499931.

It can be written as a sum of positive squares in 2 ways, for example, as 1380625 + 19321 = 1175^2 + 139^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1399943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12011 + ... + 12126.

2^1399946 is an apocalyptic number.

1399946 is a deficient number, since it is larger than the sum of its proper divisors (772474).

1399946 is a wasteful number, since it uses less digits than its factorization.

1399946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24168.

The product of its digits is 52488, while the sum is 41.

The square root of 1399946 is about 1183.1931372350. The cubic root of 1399946 is about 111.8674558753.

The spelling of 1399946 in words is "one million, three hundred ninety-nine thousand, nine hundred forty-six".