1245726 has 64 divisors (see below), whose sum is σ = 3110400. Its totient is φ = 367488.

The previous prime is 1245721. The next prime is 1245763. The reversal of 1245726 is 6275421.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1245726.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245721) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21085 + ... + 21143.

It is an arithmetic number, because the mean of its divisors is an integer number (48600).

2^1245726 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1245726, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1555200).

1245726 is an abundant number, since it is smaller than the sum of its proper divisors (1864674).

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

1245726 is a wasteful number, since it uses less digits than its factorization.

1245726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110 (or 104 counting only the distinct ones).

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

The square root of 1245726 is about 1116.1209611866. The cubic root of 1245726 is about 107.5988202540.

The spelling of 1245726 in words is "one million, two hundred forty-five thousand, seven hundred twenty-six".