12477240 has 80 divisors (see below), whose sum is σ = 41948280. Its totient is φ = 3326400.

The previous prime is 12477239. The next prime is 12477259. The reversal of 12477240 is 4277421.

It is a happy number.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 19 ways as a sum of consecutive naturals, for example, 1315 + ... + 5165.

Almost surely, 2^12477240 is an apocalyptic number.

12477240 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 12477240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20974140).

12477240 is an abundant number, since it is smaller than the sum of its proper divisors (29471040).

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

12477240 is a wasteful number, since it uses less digits than its factorization.

12477240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3874 (or 3861 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 27.

The square root of 12477240 is about 3532.3136893543. The cubic root of 12477240 is about 231.9384993543.

The spelling of 12477240 in words is "twelve million, four hundred seventy-seven thousand, two hundred forty".