40430140 has 12 divisors (see below), whose sum is σ = 84903336. Its totient is φ = 16172048.

The previous prime is 40430111. The next prime is 40430153. The reversal of 40430140 is 4103404.

40430140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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, 1010734 + ... + 1010773.

It is an arithmetic number, because the mean of its divisors is an integer number (7075278).

Almost surely, 2^40430140 is an apocalyptic number.

It is an amenable number.

40430140 is an abundant number, since it is smaller than the sum of its proper divisors (44473196).

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

40430140 is a wasteful number, since it uses less digits than its factorization.

40430140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2021516 (or 2021514 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 40430140 is about 6358.4699417391. The cubic root of 40430140 is about 343.2167029832.

Adding to 40430140 its reverse (4103404), we get a palindrome (44533544).

The spelling of 40430140 in words is "forty million, four hundred thirty thousand, one hundred forty".