12254042040 has 128 divisors (see below), whose sum is σ = 37134581760. Its totient is φ = 3234760704.

The previous prime is 12254042029. The next prime is 12254042069. The reversal of 12254042040 is 4024045221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 12254042040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12542032 + ... + 12543008.

It is an arithmetic number, because the mean of its divisors is an integer number (290113920).

Almost surely, 2^12254042040 is an apocalyptic number.

12254042040 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 12254042040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18567290880).

12254042040 is an abundant number, since it is smaller than the sum of its proper divisors (24880539720).

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

12254042040 is a wasteful number, since it uses less digits than its factorization.

12254042040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1941 (or 1937 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

Adding to 12254042040 its reverse (4024045221), we get a palindrome (16278087261).

The spelling of 12254042040 in words is "twelve billion, two hundred fifty-four million, forty-two thousand, forty".