12249490 has 32 divisors (see below), whose sum is σ = 25323840. Its totient is φ = 4219200.

The previous prime is 12249487. The next prime is 12249491. The reversal of 12249490 is 9494221.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12249491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 841 + ... + 5020.

It is an arithmetic number, because the mean of its divisors is an integer number (791370).

Almost surely, 2^12249490 is an apocalyptic number.

12249490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12249490 is an abundant number, since it is smaller than the sum of its proper divisors (13074350).

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

12249490 is a wasteful number, since it uses less digits than its factorization.

12249490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5898.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 12249490 is about 3499.9271420988. The cubic root of 12249490 is about 230.5186154803.

The spelling of 12249490 in words is "twelve million, two hundred forty-nine thousand, four hundred ninety".