40618032 has 160 divisors (see below), whose sum is σ = 136991232. Its totient is φ = 10063872.

The previous prime is 40618031. The next prime is 40618037. The reversal of 40618032 is 23081604.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 40617993 and 40618011.

It is not an unprimeable number, because it can be changed into a prime (40618031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73983 + ... + 74529.

Almost surely, 2^40618032 is an apocalyptic number.

40618032 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 40618032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68495616).

40618032 is an abundant number, since it is smaller than the sum of its proper divisors (96373200).

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

40618032 is a wasteful number, since it uses less digits than its factorization.

40618032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595 (or 589 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 40618032 is about 6373.2277536583. The cubic root of 40618032 is about 343.7475613271.

Adding to 40618032 its reverse (23081604), we get a palindrome (63699636).

The spelling of 40618032 in words is "forty million, six hundred eighteen thousand, thirty-two".