354400042 has 4 divisors (see below), whose sum is σ = 531600066. Its totient is φ = 177200020.

The previous prime is 354400019. The next prime is 354400043. The reversal of 354400042 is 240004453.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 328298161 + 26101881 = 18119^2 + 5109^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 354399986 and 354400022.

It is not an unprimeable number, because it can be changed into a prime (354400043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 88600009 + ... + 88600012.

Almost surely, 2^354400042 is an apocalyptic number.

354400042 is a deficient number, since it is larger than the sum of its proper divisors (177200024).

354400042 is a wasteful number, since it uses less digits than its factorization.

354400042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177200023.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 354400042 is about 18825.5157167075. The cubic root of 354400042 is about 707.6707655074.

Adding to 354400042 its reverse (240004453), we get a palindrome (594404495).

The spelling of 354400042 in words is "three hundred fifty-four million, four hundred thousand, forty-two".