1269198 has 36 divisors (see below), whose sum is σ = 3201120. Its totient is φ = 362376.

The previous prime is 1269197. The next prime is 1269221. The reversal of 1269198 is 8919621.

It is a super-2 number, since 2×1269198² = 3221727126408, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1269193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 163 + ... + 1601.

It is an arithmetic number, because the mean of its divisors is an integer number (88920).

2^1269198 is an apocalyptic number.

1269198 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1269198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1600560).

1269198 is an abundant number, since it is smaller than the sum of its proper divisors (1931922).

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

1269198 is a wasteful number, since it uses less digits than its factorization.

1269198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1461 (or 1451 counting only the distinct ones).

The product of its digits is 7776, while the sum is 36.

The square root of 1269198 is about 1126.5868808041. The cubic root of 1269198 is about 108.2704129038.

The spelling of 1269198 in words is "one million, two hundred sixty-nine thousand, one hundred ninety-eight".