1398588 has 12 divisors (see below), whose sum is σ = 3263400. Its totient is φ = 466192.

The previous prime is 1398581. The next prime is 1398599. The reversal of 1398588 is 8858931.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1398581) 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, 58263 + ... + 58286.

It is an arithmetic number, because the mean of its divisors is an integer number (271950).

2^1398588 is an apocalyptic number.

It is an amenable number.

1398588 is an abundant number, since it is smaller than the sum of its proper divisors (1864812).

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

1398588 is a wasteful number, since it uses less digits than its factorization.

1398588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116556 (or 116554 counting only the distinct ones).

The product of its digits is 69120, while the sum is 42.

The square root of 1398588 is about 1182.6191271918. The cubic root of 1398588 is about 111.8312723004.

The spelling of 1398588 in words is "one million, three hundred ninety-eight thousand, five hundred eighty-eight".