11868550 has 24 divisors (see below), whose sum is σ = 23375736. Its totient is φ = 4467840.

The previous prime is 11868541. The next prime is 11868589. The reversal of 11868550 is 5586811.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 6132 + ... + 7831.

It is an arithmetic number, because the mean of its divisors is an integer number (973989).

Almost surely, 2^11868550 is an apocalyptic number.

11868550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11868550 is a deficient number, since it is larger than the sum of its proper divisors (11507186).

11868550 is a wasteful number, since it uses less digits than its factorization.

11868550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13992 (or 13987 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 34.

The square root of 11868550 is about 3445.0761965449. The cubic root of 11868550 is about 228.1038180120.

The spelling of 11868550 in words is "eleven million, eight hundred sixty-eight thousand, five hundred fifty".