11533340 has 48 divisors (see below), whose sum is σ = 29813952. Its totient is φ = 3649536.

The previous prime is 11533321. The next prime is 11533351. The reversal of 11533340 is 4333511.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1349 + ... + 4988.

It is an arithmetic number, because the mean of its divisors is an integer number (621124).

Almost surely, 2^11533340 is an apocalyptic number.

11533340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11533340 is an abundant number, since it is smaller than the sum of its proper divisors (18280612).

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

11533340 is a wasteful number, since it uses less digits than its factorization.

11533340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6366 (or 6364 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 11533340 is about 3396.0771487114. The cubic root of 11533340 is about 225.9357898355.

Adding to 11533340 its reverse (4333511), we get a palindrome (15866851).

The spelling of 11533340 in words is "eleven million, five hundred thirty-three thousand, three hundred forty".