40144042 has 8 divisors (see below), whose sum is σ = 60482016. Its totient is φ = 19983372.

The previous prime is 40144037. The next prime is 40144061. The reversal of 40144042 is 24044104.

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

It is a super-2 number, since 2×40144042² = 3223088216195528, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43758 + ... + 44665.

It is an arithmetic number, because the mean of its divisors is an integer number (7560252).

Almost surely, 2^40144042 is an apocalyptic number.

40144042 is a deficient number, since it is larger than the sum of its proper divisors (20337974).

40144042 is a wasteful number, since it uses less digits than its factorization.

40144042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88652.

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

The square root of 40144042 is about 6335.9326069648. The cubic root of 40144042 is about 342.4052114839.

Adding to 40144042 its reverse (24044104), we get a palindrome (64188146).

The spelling of 40144042 in words is "forty million, one hundred forty-four thousand, forty-two".