1190640 has 120 divisors (see below), whose sum is σ = 4155984. Its totient is φ = 281600.

The previous prime is 1190639. The next prime is 1190647. The reversal of 1190640 is 460911.

1190640 = 150² + 151² + ... + 190².

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1190647) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29020 + ... + 29060.

2^1190640 is an apocalyptic number.

1190640 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 1190640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2077992).

1190640 is an abundant number, since it is smaller than the sum of its proper divisors (2965344).

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

1190640 is a wasteful number, since it uses less digits than its factorization.

1190640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79 (or 62 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 1190640 is about 1091.1645155521. The cubic root of 1190640 is about 105.9888442039.

It can be divided in two parts, 1190 and 640, that added together give a triangular number (1830 = T₆₀).

The spelling of 1190640 in words is "one million, one hundred ninety thousand, six hundred forty".