42400353 has 8 divisors (see below), whose sum is σ = 56610400. Its totient is φ = 28228608.

The previous prime is 42400321. The next prime is 42400357. The reversal of 42400353 is 35300424.

It is a happy number.

42400353 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 not a de Polignac number, because 42400353 - 2⁵ = 42400321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42400357) by changing a digit.

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, 6883 + ... + 11496.

It is an arithmetic number, because the mean of its divisors is an integer number (7076300).

Almost surely, 2^42400353 is an apocalyptic number.

It is an amenable number.

42400353 is a deficient number, since it is larger than the sum of its proper divisors (14210047).

42400353 is a wasteful number, since it uses less digits than its factorization.

42400353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19151.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 42400353 is about 6511.5553441555. Note that the first 3 decimals coincide. The cubic root of 42400353 is about 348.7036479551.

Adding to 42400353 its reverse (35300424), we get a palindrome (77700777).

The spelling of 42400353 in words is "forty-two million, four hundred thousand, three hundred fifty-three".