418385436 has 96 divisors (see below), whose sum is σ = 1222179840. Its totient is φ = 108616704.

The previous prime is 418385431. The next prime is 418385441. The reversal of 418385436 is 634583814.

It is an interprime number because it is at equal distance from previous prime (418385431) and next prime (418385441).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an alternating number because its digits alternate between even and odd.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (418385431) 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, 36361 + ... + 46463.

It is an arithmetic number, because the mean of its divisors is an integer number (12731040).

Almost surely, 2^418385436 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 418385436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (611089920).

418385436 is an abundant number, since it is smaller than the sum of its proper divisors (803794404).

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

418385436 is a wasteful number, since it uses less digits than its factorization.

418385436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10163 (or 10161 counting only the distinct ones).

The product of its digits is 276480, while the sum is 42.

The square root of 418385436 is about 20454.4722738085. The cubic root of 418385436 is about 747.9263823189.

It can be divided in two parts, 41838 and 5436, that added together give a palindrome (47274).

The spelling of 418385436 in words is "four hundred eighteen million, three hundred eighty-five thousand, four hundred thirty-six".