1119640 has 32 divisors (see below), whose sum is σ = 2630880. Its totient is φ = 428032.

The previous prime is 1119623. The next prime is 1119649. The reversal of 1119640 is 469111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1119649) 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, 312 + ... + 1528.

It is an arithmetic number, because the mean of its divisors is an integer number (82215).

2^1119640 is an apocalyptic number.

1119640 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 1119640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1315440).

1119640 is an abundant number, since it is smaller than the sum of its proper divisors (1511240).

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

1119640 is a wasteful number, since it uses less digits than its factorization.

1119640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251 (or 1247 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 1119640 is about 1058.1304267433. The cubic root of 1119640 is about 103.8387540716.

It can be divided in two parts, 11196 and 40, that added together give a square (11236 = 106²).

The spelling of 1119640 in words is "one million, one hundred nineteen thousand, six hundred forty".