40332330 has 160 divisors (see below), whose sum is σ = 119964240. Its totient is φ = 9676800.

The previous prime is 40332319. The next prime is 40332343. The reversal of 40332330 is 3323304.

40332330 is a `hidden beast` number, since 4 + 0 + 332 + 330 = 666.

40332330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 34117281 + 6215049 = 5841^2 + 2493^2 .

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

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 79 ways as a sum of consecutive naturals, for example, 399280 + ... + 399380.

Almost surely, 2^40332330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40332330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59982120).

40332330 is an abundant number, since it is smaller than the sum of its proper divisors (79631910).

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

40332330 is a wasteful number, since it uses less digits than its factorization.

40332330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166 (or 157 counting only the distinct ones).

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

The square root of 40332330 is about 6350.7739685805. The cubic root of 40332330 is about 342.9397055631.

Adding to 40332330 its reverse (3323304), we get a palindrome (43655634).

The spelling of 40332330 in words is "forty million, three hundred thirty-two thousand, three hundred thirty".