1150640 has 40 divisors (see below), whose sum is σ = 2819760. Its totient is φ = 435456.

The previous prime is 1150631. The next prime is 1150649. The reversal of 1150640 is 460511.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1150631) and next prime (1150649).

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

It is not an unprimeable number, because it can be changed into a prime (1150649) 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, 1142 + ... + 1898.

It is an arithmetic number, because the mean of its divisors is an integer number (70494).

2^1150640 is an apocalyptic number.

1150640 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 1150640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1409880).

1150640 is an abundant number, since it is smaller than the sum of its proper divisors (1669120).

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

1150640 is a wasteful number, since it uses less digits than its factorization.

1150640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789 (or 783 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 1150640 is about 1072.6788895098. The cubic root of 1150640 is about 104.7883871133.

It can be divided in two parts, 11 and 50640, that multiplied together give a triangular number (557040 = T₁₀₅₅).

The spelling of 1150640 in words is "one million, one hundred fifty thousand, six hundred forty".