11421450 has 72 divisors (see below), whose sum is σ = 32512428. Its totient is φ = 2864640.

The previous prime is 11421437. The next prime is 11421461. The reversal of 11421450 is 5412411.

It can be written as a sum of positive squares in 6 ways, for example, as 8105409 + 3316041 = 2847^2 + 1821^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 6904 + ... + 8396.

Almost surely, 2^11421450 is an apocalyptic number.

11421450 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 11421450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16256214).

11421450 is an abundant number, since it is smaller than the sum of its proper divisors (21090978).

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

11421450 is a wasteful number, since it uses less digits than its factorization.

11421450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1528 (or 1520 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 11421450 is about 3379.5635812927. The cubic root of 11421450 is about 225.2027801534.

Adding to 11421450 its reverse (5412411), we get a palindrome (16833861).

The spelling of 11421450 in words is "eleven million, four hundred twenty-one thousand, four hundred fifty".