1390246 has 16 divisors (see below), whose sum is σ = 2450448. Its totient is φ = 583200.

The previous prime is 1390241. The next prime is 1390247. The reversal of 1390246 is 6420931.

It is a self number, because there is not a number n which added to its sum of digits gives 1390246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390241) 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 7 ways as a sum of consecutive naturals, for example, 2145 + ... + 2716.

It is an arithmetic number, because the mean of its divisors is an integer number (153153).

2^1390246 is an apocalyptic number.

1390246 is a deficient number, since it is larger than the sum of its proper divisors (1060202).

1390246 is a wasteful number, since it uses less digits than its factorization.

1390246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4887.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 1390246 is about 1179.0869348780. The cubic root of 1390246 is about 111.6084863131.

The spelling of 1390246 in words is "one million, three hundred ninety thousand, two hundred forty-six".