12049380 has 144 divisors (see below), whose sum is σ = 42666624. Its totient is φ = 2695680.

The previous prime is 12049361. The next prime is 12049399. The reversal of 12049380 is 8394021.

It is an interprime number because it is at equal distance from previous prime (12049361) and next prime (12049399).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 91915 + ... + 92045.

It is an arithmetic number, because the mean of its divisors is an integer number (296296).

Almost surely, 2^12049380 is an apocalyptic number.

12049380 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 12049380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21333312).

12049380 is an abundant number, since it is smaller than the sum of its proper divisors (30617244).

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

12049380 is a wasteful number, since it uses less digits than its factorization.

12049380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 12049380 is about 3471.2216869569. The cubic root of 12049380 is about 229.2564520176.

The spelling of 12049380 in words is "twelve million, forty-nine thousand, three hundred eighty".