1398285 has 48 divisors (see below), whose sum is σ = 2905344. Its totient is φ = 608256.

The previous prime is 1398283. The next prime is 1398289. The reversal of 1398285 is 5828931.

It is not a de Polignac number, because 1398285 - 2¹ = 1398283 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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 47 ways as a sum of consecutive naturals, for example, 7149 + ... + 7341.

It is an arithmetic number, because the mean of its divisors is an integer number (60528).

2^1398285 is an apocalyptic number.

1398285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1398285 is an abundant number, since it is smaller than the sum of its proper divisors (1507059).

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

1398285 is a wasteful number, since it uses less digits than its factorization.

1398285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234 (or 231 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 1398285 is about 1182.4910147650. The cubic root of 1398285 is about 111.8231957444.

The spelling of 1398285 in words is "one million, three hundred ninety-eight thousand, two hundred eighty-five".