40303032 has 128 divisors (see below), whose sum is σ = 127388160. Its totient is φ = 10321920.

The previous prime is 40303031. The next prime is 40303033. The reversal of 40303032 is 23030304.

It is an interprime number because it is at equal distance from previous prime (40303031) and next prime (40303033).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40303031) 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, 208728 + ... + 208920.

It is an arithmetic number, because the mean of its divisors is an integer number (995220).

Almost surely, 2^40303032 is an apocalyptic number.

40303032 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 40303032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63694080).

40303032 is an abundant number, since it is smaller than the sum of its proper divisors (87085128).

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

40303032 is a wasteful number, since it uses less digits than its factorization.

40303032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333 (or 329 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 15.

The square root of 40303032 is about 6348.4669015440. The cubic root of 40303032 is about 342.8566466263.

Adding to 40303032 its reverse (23030304), we get a palindrome (63333336).

The spelling of 40303032 in words is "forty million, three hundred three thousand, thirty-two".