40044142 has 8 divisors (see below), whose sum is σ = 60912432. Its totient is φ = 19740000.

The previous prime is 40044139. The next prime is 40044209. The reversal of 40044142 is 24144004.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140859 + ... + 141142.

It is an arithmetic number, because the mean of its divisors is an integer number (7614054).

Almost surely, 2^40044142 is an apocalyptic number.

40044142 is a deficient number, since it is larger than the sum of its proper divisors (20868290).

40044142 is a wasteful number, since it uses less digits than its factorization.

40044142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282074.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 40044142 is about 6328.0440896062. The cubic root of 40044142 is about 342.1209460175.

Adding to 40044142 its reverse (24144004), we get a palindrome (64188146).

It can be divided in two parts, 40044 and 142, that added together give a triangular number (40186 = T₂₈₃).

The spelling of 40044142 in words is "forty million, forty-four thousand, one hundred forty-two".