1398286 has 16 divisors (see below), whose sum is σ = 2280960. Its totient is φ = 640440.

The previous prime is 1398283. The next prime is 1398289. The reversal of 1398286 is 6828931.

1398286 = T₉₆₄ + T₉₆₅ + T₉₆₆.

It is an interprime number because it is at equal distance from previous prime (1398283) and next prime (1398289).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1398281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 585 + ... + 1771.

It is an arithmetic number, because the mean of its divisors is an integer number (142560).

2^1398286 is an apocalyptic number.

1398286 is the 966-th centered triangular number.

1398286 is a deficient number, since it is larger than the sum of its proper divisors (882674).

1398286 is a wasteful number, since it uses less digits than its factorization.

1398286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239.

The product of its digits is 20736, while the sum is 37.

The square root of 1398286 is about 1182.4914376011. The cubic root of 1398286 is about 111.8232224016.

The spelling of 1398286 in words is "one million, three hundred ninety-eight thousand, two hundred eighty-six".