1180398 has 16 divisors (see below), whose sum is σ = 2383056. Its totient is φ = 389760.

The previous prime is 1180397. The next prime is 1180409. The reversal of 1180398 is 8930811.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1180391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193 + ... + 1548.

It is an arithmetic number, because the mean of its divisors is an integer number (148941).

2^1180398 is an apocalyptic number.

1180398 is an abundant number, since it is smaller than the sum of its proper divisors (1202658).

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

1180398 is a wasteful number, since it uses less digits than its factorization.

1180398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1859.

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 1180398 is about 1086.4612280243. The cubic root of 1180398 is about 105.6840598480.

The spelling of 1180398 in words is "one million, one hundred eighty thousand, three hundred ninety-eight".