12449017332 has 72 divisors (see below), whose sum is σ = 33081071296. Its totient is φ = 4092804288.

The previous prime is 12449017319. The next prime is 12449017367. The reversal of 12449017332 is 23371094421.

It is a happy number.

12449017332 is a `hidden beast` number, since 12 + 449 + 0 + 173 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16768 + ... + 158679.

Almost surely, 2^12449017332 is an apocalyptic number.

12449017332 is a gapful number since it is divisible by the number (12) 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 12449017332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16540535648).

12449017332 is an abundant number, since it is smaller than the sum of its proper divisors (20632053964).

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

12449017332 is a wasteful number, since it uses less digits than its factorization.

12449017332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175539 (or 175525 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The spelling of 12449017332 in words is "twelve billion, four hundred forty-nine million, seventeen thousand, three hundred thirty-two".