12242490 has 32 divisors (see below), whose sum is σ = 31643136. Its totient is φ = 3013440.

The previous prime is 12242473. The next prime is 12242491. The reversal of 12242490 is 9424221.

It is a super-2 number, since 2×12242490² = 299757122800200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12242490.

It is not an unprimeable number, because it can be changed into a prime (12242491) 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, 15306 + ... + 16085.

It is an arithmetic number, because the mean of its divisors is an integer number (988848).

Almost surely, 2^12242490 is an apocalyptic number.

12242490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12242490 is an abundant number, since it is smaller than the sum of its proper divisors (19400646).

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

12242490 is a wasteful number, since it uses less digits than its factorization.

12242490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31414.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 12242490 is about 3498.9269783749. The cubic root of 12242490 is about 230.4746969776.

The spelling of 12242490 in words is "twelve million, two hundred forty-two thousand, four hundred ninety".