40418532 has 108 divisors (see below), whose sum is σ = 129716496. Its totient is φ = 10493280.

The previous prime is 40418519. The next prime is 40418557. The reversal of 40418532 is 23581404.

40418532 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 40418496 and 40418505.

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 35 ways as a sum of consecutive naturals, for example, 18363 + ... + 20445.

Almost surely, 2^40418532 is an apocalyptic number.

40418532 is a gapful number since it is divisible by the number (42) 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 40418532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64858248).

40418532 is an abundant number, since it is smaller than the sum of its proper divisors (89297964).

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

40418532 is a wasteful number, since it uses less digits than its factorization.

40418532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2118 (or 2106 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 40418532 is about 6357.5570779978. The cubic root of 40418532 is about 343.1838525664.

Adding to 40418532 its reverse (23581404), we get a palindrome (63999936).

The spelling of 40418532 in words is "forty million, four hundred eighteen thousand, five hundred thirty-two".