11973240 has 96 divisors (see below), whose sum is σ = 39499200. Its totient is φ = 3144960.

The previous prime is 11973229. The next prime is 11973251. The reversal of 11973240 is 4237911.

It is an interprime number because it is at equal distance from previous prime (11973229) and next prime (11973251).

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 23 ways as a sum of consecutive naturals, for example, 28230 + ... + 28650.

It is an arithmetic number, because the mean of its divisors is an integer number (411450).

Almost surely, 2^11973240 is an apocalyptic number.

11973240 is a gapful number since it is divisible by the number (10) 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 11973240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19749600).

11973240 is an abundant number, since it is smaller than the sum of its proper divisors (27525960).

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

11973240 is a wasteful number, since it uses less digits than its factorization.

11973240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517 (or 510 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 11973240 is about 3460.2369861037. The cubic root of 11973240 is about 228.7725410019.

The spelling of 11973240 in words is "eleven million, nine hundred seventy-three thousand, two hundred forty".