1398592 has 42 divisors (see below), whose sum is σ = 3063494. Its totient is φ = 629760.

The previous prime is 1398581. The next prime is 1398599. The reversal of 1398592 is 2958931.

It can be written as a sum of positive squares in 3 ways, for example, as 179776 + 1218816 = 424^2 + 1104^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1398599) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34092 + ... + 34132.

2^1398592 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 1398592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1531747).

1398592 is an abundant number, since it is smaller than the sum of its proper divisors (1664902).

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

1398592 is an equidigital number, since it uses as much as digits as its factorization.

1398592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107 (or 56 counting only the distinct ones).

The product of its digits is 19440, while the sum is 37.

The square root of 1398592 is about 1182.6208183522. The cubic root of 1398592 is about 111.8313789138.

The spelling of 1398592 in words is "one million, three hundred ninety-eight thousand, five hundred ninety-two".