12572406 has 96 divisors (see below), whose sum is σ = 34864128. Its totient is φ = 3179520.

The previous prime is 12572377. The next prime is 12572419. The reversal of 12572406 is 60427521.

12572406 is a `hidden beast` number, since 1 + 257 + 2 + 406 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 12572406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 65046 + ... + 65238.

It is an arithmetic number, because the mean of its divisors is an integer number (363168).

Almost surely, 2^12572406 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12572406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17432064).

12572406 is an abundant number, since it is smaller than the sum of its proper divisors (22291722).

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

12572406 is a wasteful number, since it uses less digits than its factorization.

12572406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 12572406 is about 3545.7588750506. The cubic root of 12572406 is about 232.5266844156.

Adding to 12572406 its reverse (60427521), we get a palindrome (72999927).

It can be divided in two parts, 1257 and 2406, that added together give a palindrome (3663).

The spelling of 12572406 in words is "twelve million, five hundred seventy-two thousand, four hundred six".