1189040 has 40 divisors (see below), whose sum is σ = 2812320. Its totient is φ = 467456.

The previous prime is 1189033. The next prime is 1189057. The reversal of 1189040 is 409811.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×1189040² = 2827632243200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1188997 and 1189015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7037 + ... + 7203.

It is an arithmetic number, because the mean of its divisors is an integer number (70308).

2^1189040 is an apocalyptic number.

1189040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1189040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1406160).

1189040 is an abundant number, since it is smaller than the sum of its proper divisors (1623280).

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

1189040 is a wasteful number, since it uses less digits than its factorization.

1189040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 1189040 is about 1090.4311074066. The cubic root of 1189040 is about 105.9413464521.

The spelling of 1189040 in words is "one million, one hundred eighty-nine thousand, forty".