40434318 has 48 divisors (see below), whose sum is σ = 92851200. Its totient is φ = 12681360.

The previous prime is 40434311. The next prime is 40434367. The reversal of 40434318 is 81343404.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40434291 and 40434300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40434311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65013 + ... + 65631.

It is an arithmetic number, because the mean of its divisors is an integer number (1934400).

Almost surely, 2^40434318 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40434318, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46425600).

40434318 is an abundant number, since it is smaller than the sum of its proper divisors (52416882).

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

40434318 is a wasteful number, since it uses less digits than its factorization.

40434318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837 (or 834 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 40434318 is about 6358.7984714095. The cubic root of 40434318 is about 343.2285251039.

The spelling of 40434318 in words is "forty million, four hundred thirty-four thousand, three hundred eighteen".