293402642 has 32 divisors (see below), whose sum is σ = 487393200. Its totient is φ = 131604480.

The previous prime is 293402597. The next prime is 293402671. The reversal of 293402642 is 246204392.

293402642 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 17129²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 1 + 293402641 = 1^2 + 17129^2 .

It is a super-2 number, since 2×293402642² = 172170220665160328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 293402599 and 293402608.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 478328 + ... + 478940.

Almost surely, 2^293402642 is an apocalyptic number.

293402642 is a deficient number, since it is larger than the sum of its proper divisors (193990558).

293402642 is a wasteful number, since it uses less digits than its factorization.

293402642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 293402642 is about 17129.0000291903. Note that the first 4 decimals coincide. The cubic root of 293402642 is about 664.4893224445.

The spelling of 293402642 in words is "two hundred ninety-three million, four hundred two thousand, six hundred forty-two".