40213330 has 16 divisors (see below), whose sum is σ = 76642200. Its totient is φ = 15139072.

The previous prime is 40213319. The next prime is 40213337. The reversal of 40213330 is 3331204.

40213330 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 4 ways, for example, as 40081561 + 131769 = 6331^2 + 363^2 .

It is a super-2 number, since 2×40213330² = 3234223819377800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40213337) 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 7 ways as a sum of consecutive naturals, for example, 118105 + ... + 118444.

Almost surely, 2^40213330 is an apocalyptic number.

40213330 is a deficient number, since it is larger than the sum of its proper divisors (36428870).

40213330 is a wasteful number, since it uses less digits than its factorization.

40213330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236573.

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

The square root of 40213330 is about 6341.3981108270. The cubic root of 40213330 is about 342.6020936344.

Adding to 40213330 its reverse (3331204), we get a palindrome (43544534).

The spelling of 40213330 in words is "forty million, two hundred thirteen thousand, three hundred thirty".