40321330 has 16 divisors (see below), whose sum is σ = 82946880. Its totient is φ = 13824432.

The previous prime is 40321313. The next prime is 40321373. The reversal of 40321330 is 3312304.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 287940 + ... + 288079.

It is an arithmetic number, because the mean of its divisors is an integer number (5184180).

Almost surely, 2^40321330 is an apocalyptic number.

40321330 is an abundant number, since it is smaller than the sum of its proper divisors (42625550).

40321330 is a wasteful number, since it uses less digits than its factorization.

40321330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576033.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 40321330 is about 6349.9078733475. The cubic root of 40321330 is about 342.9085256159.

Adding to 40321330 its reverse (3312304), we get a palindrome (43633634).

The spelling of 40321330 in words is "forty million, three hundred twenty-one thousand, three hundred thirty".