12450906 has 36 divisors (see below), whose sum is σ = 29218878. Its totient is φ = 3830112.

The previous prime is 12450883. The next prime is 12450929. The reversal of 12450906 is 60905421.

It is an interprime number because it is at equal distance from previous prime (12450883) and next prime (12450929).

It can be written as a sum of positive squares in 3 ways, for example, as 5716881 + 6734025 = 2391^2 + 2595^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12450906.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 996 + ... + 5088.

Almost surely, 2^12450906 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12450906, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14609439).

12450906 is an abundant number, since it is smaller than the sum of its proper divisors (16767972).

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

12450906 is a wasteful number, since it uses less digits than its factorization.

12450906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4127 (or 4111 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 12450906 is about 3528.5841353155. The cubic root of 12450906 is about 231.7752108251.

The spelling of 12450906 in words is "twelve million, four hundred fifty thousand, nine hundred six".