40140330 has 32 divisors (see below), whose sum is σ = 96985728. Its totient is φ = 10632000.

The previous prime is 40140307. The next prime is 40140337. The reversal of 40140330 is 3304104.

40140330 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 2×40140330² = 3222492185017800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40140337) 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 15 ways as a sum of consecutive naturals, for example, 100 + ... + 8960.

It is an arithmetic number, because the mean of its divisors is an integer number (3030804).

Almost surely, 2^40140330 is an apocalyptic number.

40140330 is an abundant number, since it is smaller than the sum of its proper divisors (56845398).

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

40140330 is a wasteful number, since it uses less digits than its factorization.

40140330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9022.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 40140330 is about 6335.6396677841. The cubic root of 40140330 is about 342.3946574286.

Adding to 40140330 its reverse (3304104), we get a palindrome (43444434).

It can be divided in two parts, 40140 and 330, that added together give a triangular number (40470 = T₂₈₄).

The spelling of 40140330 in words is "forty million, one hundred forty thousand, three hundred thirty".