12440154 has 8 divisors (see below), whose sum is σ = 24880320. Its totient is φ = 4146716.

The previous prime is 12440147. The next prime is 12440161. The reversal of 12440154 is 45104421.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12440147) and next prime (12440161).

It is a sphenic number, since it is the product of 3 distinct primes.

12440154 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12440154.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1036674 + ... + 1036685.

It is an arithmetic number, because the mean of its divisors is an integer number (3110040).

Almost surely, 2^12440154 is an apocalyptic number.

12440154 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12440154 is a wasteful number, since it uses less digits than its factorization.

12440154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2073364.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 12440154 is about 3527.0602489892. The cubic root of 12440154 is about 231.7084749922.

Adding to 12440154 its reverse (45104421), we get a palindrome (57544575).

The spelling of 12440154 in words is "twelve million, four hundred forty thousand, one hundred fifty-four".