436240 has 80 divisors (see below), whose sum is σ = 1249920. Its totient is φ = 138240.

The previous prime is 436231. The next prime is 436253. The reversal of 436240 is 42634.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10620 + ... + 10660.

It is an arithmetic number, because the mean of its divisors is an integer number (15624).

2⁴³⁶²⁴⁰ is an apocalyptic number.

436240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 436240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (624960).

436240 is an abundant number, since it is smaller than the sum of its proper divisors (813680).

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

436240 is a wasteful number, since it uses less digits than its factorization.

436240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80 (or 74 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 436240 is about 660.4846705261. The cubic root of 436240 is about 75.8417760864.

Adding to 436240 its reverse (42634), we get a palindrome (478874).

It can be divided in two parts, 436 and 240, that added together give a palindrome (676).

The spelling of 436240 in words is "four hundred thirty-six thousand, two hundred forty".