400042341 has 16 divisors (see below), whose sum is σ = 594853120. Its totient is φ = 265705920.

The previous prime is 400042339. The next prime is 400042369. The reversal of 400042341 is 143240004.

It is not a de Polignac number, because 400042341 - 2¹ = 400042339 is a prime.

It is a super-3 number, since 3×400042341³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400042241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20020 + ... + 34653.

It is an arithmetic number, because the mean of its divisors is an integer number (37178320).

Almost surely, 2^400042341 is an apocalyptic number.

It is an amenable number.

400042341 is a deficient number, since it is larger than the sum of its proper divisors (194810779).

400042341 is a wasteful number, since it uses less digits than its factorization.

400042341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54953 (or 54947 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 400042341 is about 20001.0584969896. The cubic root of 400042341 is about 736.8322964071.

Adding to 400042341 its reverse (143240004), we get a palindrome (543282345).

The spelling of 400042341 in words is "four hundred million, forty-two thousand, three hundred forty-one".