1199838 has 16 divisors (see below), whose sum is σ = 2411136. Its totient is φ = 398040.

The previous prime is 1199833. The next prime is 1199839. The reversal of 1199838 is 8389911.

It is a happy number.

It is a super-2 number, since 2×1199838² = 2879222452488, which contains 22 as substring.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 1199796 and 1199805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1199833) 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, 1545 + ... + 2187.

It is an arithmetic number, because the mean of its divisors is an integer number (150696).

2^1199838 is an apocalyptic number.

1199838 is an abundant number, since it is smaller than the sum of its proper divisors (1211298).

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

1199838 is a wasteful number, since it uses less digits than its factorization.

1199838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959.

The product of its digits is 15552, while the sum is 39.

The square root of 1199838 is about 1095.3711699693. The cubic root of 1199838 is about 106.2610747395.

The spelling of 1199838 in words is "one million, one hundred ninety-nine thousand, eight hundred thirty-eight".