12049554 has 32 divisors (see below), whose sum is σ = 26634240. Its totient is φ = 3603600.

The previous prime is 12049537. The next prime is 12049559. The reversal of 12049554 is 45594021.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (12049559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4059 + ... + 6369.

It is an arithmetic number, because the mean of its divisors is an integer number (832320).

Almost surely, 2^12049554 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12049554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13317120).

12049554 is an abundant number, since it is smaller than the sum of its proper divisors (14584686).

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

12049554 is a wasteful number, since it uses less digits than its factorization.

12049554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2406.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 12049554 is about 3471.2467500885. The cubic root of 12049554 is about 229.2575555441.

The spelling of 12049554 in words is "twelve million, forty-nine thousand, five hundred fifty-four".