11902812 has 12 divisors (see below), whose sum is σ = 27773256. Its totient is φ = 3967600.

The previous prime is 11902811. The next prime is 11902819. The reversal of 11902812 is 21820911.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11902811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 495939 + ... + 495962.

It is an arithmetic number, because the mean of its divisors is an integer number (2314438).

Almost surely, 2^11902812 is an apocalyptic number.

11902812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11902812 is an abundant number, since it is smaller than the sum of its proper divisors (15870444).

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

11902812 is a wasteful number, since it uses less digits than its factorization.

11902812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991908 (or 991906 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 11902812 is about 3450.0452170950. The cubic root of 11902812 is about 228.3231030042.

The spelling of 11902812 in words is "eleven million, nine hundred two thousand, eight hundred twelve".