40144345 has 8 divisors (see below), whose sum is σ = 49198464. Its totient is φ = 31431984.

The previous prime is 40144339. The next prime is 40144417. The reversal of 40144345 is 54344104.

40144345 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 cyclic number.

It is not a de Polignac number, because 40144345 - 2³ = 40144337 is a prime.

It is a super-2 number, since 2×40144345² = 3223136870958050, which contains 22 as substring.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 85179 + ... + 85648.

It is an arithmetic number, because the mean of its divisors is an integer number (6149808).

Almost surely, 2^40144345 is an apocalyptic number.

It is an amenable number.

40144345 is a deficient number, since it is larger than the sum of its proper divisors (9054119).

40144345 is a wasteful number, since it uses less digits than its factorization.

40144345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170879.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 40144345 is about 6335.9565181589. The cubic root of 40144345 is about 342.4060729527.

Adding to 40144345 its reverse (54344104), we get a palindrome (94488449).

The spelling of 40144345 in words is "forty million, one hundred forty-four thousand, three hundred forty-five".