1159398 has 24 divisors (see below), whose sum is σ = 2574936. Its totient is φ = 376800.

The previous prime is 1159397. The next prime is 1159421. The reversal of 1159398 is 8939511.

It is a happy number.

It is an Ulam number.

Its product of digits (9720) is a multiple of the sum of its prime factors (1620).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1159393) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48 + ... + 1523.

It is an arithmetic number, because the mean of its divisors is an integer number (107289).

2^1159398 is an apocalyptic number.

1159398 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1159398 is an abundant number, since it is smaller than the sum of its proper divisors (1415538).

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

1159398 is a wasteful number, since it uses less digits than its factorization.

1159398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1620 (or 1617 counting only the distinct ones).

The product of its digits is 9720, while the sum is 36.

The square root of 1159398 is about 1076.7534536745. The cubic root of 1159398 is about 105.0535780984.

The spelling of 1159398 in words is "one million, one hundred fifty-nine thousand, three hundred ninety-eight".