40303332 has 60 divisors (see below), whose sum is σ = 110923120. Its totient is φ = 12725424.

The previous prime is 40303327. The next prime is 40303339. The reversal of 40303332 is 23330304.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (40303339) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2883 + ... + 9429.

Almost surely, 2^40303332 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 40303332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55461560).

40303332 is an abundant number, since it is smaller than the sum of its proper divisors (70619788).

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

40303332 is a wasteful number, since it uses less digits than its factorization.

40303332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6582 (or 6571 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 18.

The square root of 40303332 is about 6348.4905292518. The cubic root of 40303332 is about 342.8574973211.

Adding to 40303332 its reverse (23330304), we get a palindrome (63633636).

The spelling of 40303332 in words is "forty million, three hundred three thousand, three hundred thirty-two".