11873640 has 32 divisors (see below), whose sum is σ = 35621280. Its totient is φ = 3166272.

The previous prime is 11873627. The next prime is 11873647. The reversal of 11873640 is 4637811.

It is a happy number.

11873640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 11873598 and 11873607.

It is not an unprimeable number, because it can be changed into a prime (11873647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49354 + ... + 49593.

It is an arithmetic number, because the mean of its divisors is an integer number (1113165).

Almost surely, 2^11873640 is an apocalyptic number.

11873640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11873640 is an abundant number, since it is smaller than the sum of its proper divisors (23747640).

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

11873640 is a wasteful number, since it uses less digits than its factorization.

11873640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98961 (or 98957 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 11873640 is about 3445.8148528323. The cubic root of 11873640 is about 228.1364218964.

The spelling of 11873640 in words is "eleven million, eight hundred seventy-three thousand, six hundred forty".