1398936 has 64 divisors (see below), whose sum is σ = 4366080. Its totient is φ = 362880.

The previous prime is 1398911. The next prime is 1398967. The reversal of 1398936 is 6398931.

It is a junction number, because it is equal to n+sod(n) for n = 1398894 and 1398903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1470 + ... + 2226.

It is an arithmetic number, because the mean of its divisors is an integer number (68220).

2^1398936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1398936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2183040).

1398936 is an abundant number, since it is smaller than the sum of its proper divisors (2967144).

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

1398936 is a wasteful number, since it uses less digits than its factorization.

1398936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784 (or 780 counting only the distinct ones).

The product of its digits is 34992, while the sum is 39.

The square root of 1398936 is about 1182.7662490957. The cubic root of 1398936 is about 111.8405469057.

The spelling of 1398936 in words is "one million, three hundred ninety-eight thousand, nine hundred thirty-six".