11815848 has 64 divisors (see below), whose sum is σ = 35812800. Its totient is φ = 3579840.

The previous prime is 11815819. The next prime is 11815877. The reversal of 11815848 is 84851811.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11815819) and next prime (11815877).

It is a super-2 number, since 2×11815848² = 279228527918208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 15 ways as a sum of consecutive naturals, for example, 111 + ... + 4862.

It is an arithmetic number, because the mean of its divisors is an integer number (559575).

Almost surely, 2^11815848 is an apocalyptic number.

11815848 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11815848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17906400).

11815848 is an abundant number, since it is smaller than the sum of its proper divisors (23996952).

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

11815848 is a wasteful number, since it uses less digits than its factorization.

11815848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4999 (or 4989 counting only the distinct ones).

The product of its digits is 10240, while the sum is 36.

The square root of 11815848 is about 3437.4187990409. The cubic root of 11815848 is about 227.7656872601.

The spelling of 11815848 in words is "eleven million, eight hundred fifteen thousand, eight hundred forty-eight".