1121838 has 16 divisors (see below), whose sum is σ = 2258256. Its totient is φ = 371520.

The previous prime is 1121837. The next prime is 1121839. The reversal of 1121838 is 8381211.

It is an interprime number because it is at equal distance from previous prime (1121837) and next prime (1121839).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121831) 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, 570 + ... + 1602.

It is an arithmetic number, because the mean of its divisors is an integer number (141141).

2^1121838 is an apocalyptic number.

1121838 is an abundant number, since it is smaller than the sum of its proper divisors (1136418).

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

1121838 is a wasteful number, since it uses less digits than its factorization.

1121838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1219.

The product of its digits is 384, while the sum is 24.

The square root of 1121838 is about 1059.1685418289. The cubic root of 1121838 is about 103.9066593479.

The spelling of 1121838 in words is "one million, one hundred twenty-one thousand, eight hundred thirty-eight".