425436 has 36 divisors (see below), whose sum is σ = 1094856. Its totient is φ = 128480.

The previous prime is 425423. The next prime is 425441. The reversal of 425436 is 634524.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1306 + ... + 1598.

2⁴²⁵⁴³⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (547428).

425436 is an abundant number, since it is smaller than the sum of its proper divisors (669420).

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

425436 is a wasteful number, since it uses less digits than its factorization.

425436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322 (or 309 counting only the distinct ones).

The product of its digits is 2880, while the sum is 24.

The square root of 425436 is about 652.2545515364. The cubic root of 425436 is about 75.2104312525.

It can be divided in two parts, 425 and 436, that added together give a triangular number (861 = T₄₁).

The spelling of 425436 in words is "four hundred twenty-five thousand, four hundred thirty-six".