906426 has 24 divisors (see below), whose sum is σ = 2018484. Its totient is φ = 293760.

The previous prime is 906421. The next prime is 906427. The reversal of 906426 is 624609.

It can be written as a sum of positive squares in 2 ways, for example, as 904401 + 2025 = 951^2 + 45^2 .

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 906426.

It is not an unprimeable number, because it can be changed into a prime (906421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15 + ... + 1346.

2⁹⁰⁶⁴²⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 906426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1009242).

906426 is an abundant number, since it is smaller than the sum of its proper divisors (1112058).

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

906426 is a wasteful number, since it uses less digits than its factorization.

906426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1406 (or 1403 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 906426 is about 952.0640734740. The cubic root of 906426 is about 96.7781802014.

The spelling of 906426 in words is "nine hundred six thousand, four hundred twenty-six".