12299490 has 72 divisors (see below), whose sum is σ = 37213020. Its totient is φ = 2810304.

The previous prime is 12299473. The next prime is 12299501. The reversal of 12299490 is 9499221.

It can be written as a sum of positive squares in 2 ways, for example, as 12299049 + 441 = 3507^2 + 21^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3016 + ... + 5804.

Almost surely, 2^12299490 is an apocalyptic number.

12299490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12299490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18606510).

12299490 is an abundant number, since it is smaller than the sum of its proper divisors (24913530).

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

12299490 is a wasteful number, since it uses less digits than its factorization.

12299490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2816 (or 2806 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 12299490 is about 3507.0628736879. The cubic root of 12299490 is about 230.8318335285.

The spelling of 12299490 in words is "twelve million, two hundred ninety-nine thousand, four hundred ninety".