12084240 has 80 divisors (see below), whose sum is σ = 42818688. Its totient is φ = 2761728.

The previous prime is 12084239. The next prime is 12084257. The reversal of 12084240 is 4248021.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1917 + ... + 5276.

Almost surely, 2^12084240 is an apocalyptic number.

12084240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12084240 is an abundant number, since it is smaller than the sum of its proper divisors (30734448).

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

12084240 is a wasteful number, since it uses less digits than its factorization.

12084240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7216 (or 7210 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 12084240 is about 3476.2393473407. The cubic root of 12084240 is about 229.4773260430.

The spelling of 12084240 in words is "twelve million, eighty-four thousand, two hundred forty".