12254957440 has 192 divisors, whose sum is σ = 33901434000. Its totient is φ = 4221296640.

The previous prime is 12254957411. The next prime is 12254957447. The reversal of 12254957440 is 4475945221.

It is a super-2 number, since 2×12254957440² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12254957447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1467196 + ... + 1475524.

Almost surely, 2^12254957440 is an apocalyptic number.

12254957440 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 12254957440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16950717000).

12254957440 is an abundant number, since it is smaller than the sum of its proper divisors (21646476560).

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

12254957440 is a wasteful number, since it uses less digits than its factorization.

12254957440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8389 (or 8366 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 43.

The spelling of 12254957440 in words is "twelve billion, two hundred fifty-four million, nine hundred fifty-seven thousand, four hundred forty".