40530284 has 12 divisors (see below), whose sum is σ = 73374000. Its totient is φ = 19566288.

The previous prime is 40530283. The next prime is 40530317. The reversal of 40530284 is 48203504.

40530284 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40530284² = 3285407842241312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40530283) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 174584 + ... + 174815.

It is an arithmetic number, because the mean of its divisors is an integer number (6114500).

Almost surely, 2^40530284 is an apocalyptic number.

It is an amenable number.

40530284 is a deficient number, since it is larger than the sum of its proper divisors (32843716).

40530284 is a wasteful number, since it uses less digits than its factorization.

40530284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349432 (or 349430 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 40530284 is about 6366.3399218075. The cubic root of 40530284 is about 343.4998478007.

Adding to 40530284 its reverse (48203504), we get a palindrome (88733788).

The spelling of 40530284 in words is "forty million, five hundred thirty thousand, two hundred eighty-four".