11500830 has 48 divisors (see below), whose sum is σ = 32623344. Its totient is φ = 2787840.

The previous prime is 11500817. The next prime is 11500831. The reversal of 11500830 is 3800511.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11500831) 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, 4819 + ... + 6798.

It is an arithmetic number, because the mean of its divisors is an integer number (679653).

Almost surely, 2^11500830 is an apocalyptic number.

11500830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11500830 is an abundant number, since it is smaller than the sum of its proper divisors (21122514).

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

11500830 is a wasteful number, since it uses less digits than its factorization.

11500830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11641 (or 11638 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 11500830 is about 3391.2873661782. The cubic root of 11500830 is about 225.7233019571.

The spelling of 11500830 in words is "eleven million, five hundred thousand, eight hundred thirty".