40332645 has 12 divisors (see below), whose sum is σ = 69909996. Its totient is φ = 21510720.

The previous prime is 40332641. The next prime is 40332647. The reversal of 40332645 is 54623304.

It can be written as a sum of positive squares in 2 ways, for example, as 19236996 + 21095649 = 4386^2 + 4593^2 .

It is not a de Polignac number, because 40332645 - 2² = 40332641 is a prime.

It is a super-3 number, since 3×40332645³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40332641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 448096 + ... + 448185.

It is an arithmetic number, because the mean of its divisors is an integer number (5825833).

Almost surely, 2^40332645 is an apocalyptic number.

40332645 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40332645 is a deficient number, since it is larger than the sum of its proper divisors (29577351).

40332645 is a wasteful number, since it uses less digits than its factorization.

40332645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896292 (or 896289 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 40332645 is about 6350.7987686589. The cubic root of 40332645 is about 342.9405983599.

Adding to 40332645 its reverse (54623304), we get a palindrome (94955949).

The spelling of 40332645 in words is "forty million, three hundred thirty-two thousand, six hundred forty-five".