356143442 has 4 divisors (see below), whose sum is σ = 534215166. Its totient is φ = 178071720.

The previous prime is 356143423. The next prime is 356143451. The reversal of 356143442 is 244341653.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 244341653 = 19 ⋅12860087.

It can be written as a sum of positive squares in only one way, i.e., 339259561 + 16883881 = 18419^2 + 4109^2 .

It is a junction number, because it is equal to n+sod(n) for n = 356143399 and 356143408.

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 as a sum of consecutive naturals, namely, 89035859 + ... + 89035862.

Almost surely, 2^356143442 is an apocalyptic number.

356143442 is a deficient number, since it is larger than the sum of its proper divisors (178071724).

356143442 is a wasteful number, since it uses less digits than its factorization.

356143442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178071723.

The product of its digits is 34560, while the sum is 32.

The square root of 356143442 is about 18871.7630866859. The cubic root of 356143442 is about 708.8292827292.

The spelling of 356143442 in words is "three hundred fifty-six million, one hundred forty-three thousand, four hundred forty-two".