11974840 has 16 divisors (see below), whose sum is σ = 26943480. Its totient is φ = 4789920.

The previous prime is 11974813. The next prime is 11974871. The reversal of 11974840 is 4847911.

It is a junction number, because it is equal to n+sod(n) for n = 11974796 and 11974805.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149646 + ... + 149725.

Almost surely, 2^11974840 is an apocalyptic number.

11974840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11974840 is an abundant number, since it is smaller than the sum of its proper divisors (14968640).

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

11974840 is a wasteful number, since it uses less digits than its factorization.

11974840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299382 (or 299378 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 11974840 is about 3460.4681764178. The cubic root of 11974840 is about 228.7827309411.

The spelling of 11974840 in words is "eleven million, nine hundred seventy-four thousand, eight hundred forty".