11813670 has 48 divisors (see below), whose sum is σ = 33510672. Its totient is φ = 2863680.

The previous prime is 11813653. The next prime is 11813677. The reversal of 11813670 is 7631811.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11813677) 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, 4977 + ... + 6956.

It is an arithmetic number, because the mean of its divisors is an integer number (698139).

Almost surely, 2^11813670 is an apocalyptic number.

11813670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11813670 is an abundant number, since it is smaller than the sum of its proper divisors (21697002).

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

11813670 is a wasteful number, since it uses less digits than its factorization.

11813670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11957 (or 11954 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 11813670 is about 3437.1019769568. The cubic root of 11813670 is about 227.7516918151.

It can be divided in two parts, 1181 and 3670, that added together give a triangular number (4851 = T₉₈).

The spelling of 11813670 in words is "eleven million, eight hundred thirteen thousand, six hundred seventy".