1259406 has 48 divisors (see below), whose sum is σ = 2940288. Its totient is φ = 388800.

The previous prime is 1259393. The next prime is 1259413. The reversal of 1259406 is 6049521.

1259406 is a `hidden beast` number, since 1 + 259 + 406 = 666.

It is a super-2 number, since 2×1259406² = 3172206945672, which contains 22 as substring.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 1259406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20616 + ... + 20676.

It is an arithmetic number, because the mean of its divisors is an integer number (61256).

2^1259406 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1259406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1470144).

1259406 is an abundant number, since it is smaller than the sum of its proper divisors (1680882).

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

1259406 is a wasteful number, since it uses less digits than its factorization.

1259406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137 (or 134 counting only the distinct ones).

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

The square root of 1259406 is about 1122.2325962117. The cubic root of 1259406 is about 107.9912544359.

The spelling of 1259406 in words is "one million, two hundred fifty-nine thousand, four hundred six".