11640450 has 48 divisors (see below), whose sum is σ = 29301696. Its totient is φ = 3057600.

The previous prime is 11640403. The next prime is 11640457. The reversal of 11640450 is 5404611.

It is not an unprimeable number, because it can be changed into a prime (11640457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10104 + ... + 11196.

It is an arithmetic number, because the mean of its divisors is an integer number (610452).

Almost surely, 2^11640450 is an apocalyptic number.

11640450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11640450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14650848).

11640450 is an abundant number, since it is smaller than the sum of its proper divisors (17661246).

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

11640450 is a wasteful number, since it uses less digits than its factorization.

11640450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1179 (or 1174 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 11640450 is about 3411.8103698770. The cubic root of 11640450 is about 226.6330568198.

It can be divided in two parts, 11640 and 450, that added together give a triangular number (12090 = T₁₅₅).

The spelling of 11640450 in words is "eleven million, six hundred forty thousand, four hundred fifty".