1398056 has 16 divisors (see below), whose sum is σ = 2859840. Its totient is φ = 635440.

The previous prime is 1398053. The next prime is 1398079. The reversal of 1398056 is 6508931.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (1398053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7856 + ... + 8031.

It is an arithmetic number, because the mean of its divisors is an integer number (178740).

2^1398056 is an apocalyptic number.

It is an amenable number.

1398056 is an abundant number, since it is smaller than the sum of its proper divisors (1461784).

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

1398056 is a wasteful number, since it uses less digits than its factorization.

1398056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15904 (or 15900 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 1398056 is about 1182.3941813118. The cubic root of 1398056 is about 111.8170909065.

The spelling of 1398056 in words is "one million, three hundred ninety-eight thousand, fifty-six".