40305142 has 8 divisors (see below), whose sum is σ = 61482600. Its totient is φ = 19810944.

The previous prime is 40305121. The next prime is 40305193. The reversal of 40305142 is 24150304.

40305142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 170667 + ... + 170902.

It is an arithmetic number, because the mean of its divisors is an integer number (7685325).

Almost surely, 2^40305142 is an apocalyptic number.

40305142 is a deficient number, since it is larger than the sum of its proper divisors (21177458).

40305142 is a wasteful number, since it uses less digits than its factorization.

40305142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341630.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 40305142 is about 6348.6330812231. The cubic root of 40305142 is about 342.8626297568.

Adding to 40305142 its reverse (24150304), we get a palindrome (64455446).

The spelling of 40305142 in words is "forty million, three hundred five thousand, one hundred forty-two".