1398896 has 40 divisors (see below), whose sum is σ = 2968560. Its totient is φ = 635904.

The previous prime is 1398871. The next prime is 1398911. The reversal of 1398896 is 6988931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9995 + ... + 10133.

It is an arithmetic number, because the mean of its divisors is an integer number (74214).

2^1398896 is an apocalyptic number.

1398896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1398896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1484280).

1398896 is an abundant number, since it is smaller than the sum of its proper divisors (1569664).

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

1398896 is a wasteful number, since it uses less digits than its factorization.

1398896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201 (or 195 counting only the distinct ones).

The product of its digits is 93312, while the sum is 44.

The square root of 1398896 is about 1182.7493394629. The cubic root of 1398896 is about 111.8394809374.

It can be divided in two parts, 139 and 8896, that multiplied together give a square (1236544 = 1112²).

The spelling of 1398896 in words is "one million, three hundred ninety-eight thousand, eight hundred ninety-six".