351206242 has 4 divisors (see below), whose sum is σ = 526809366. Its totient is φ = 175603120.

The previous prime is 351206237. The next prime is 351206243. The reversal of 351206242 is 242602153.

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., 272547081 + 78659161 = 16509^2 + 8869^2 .

It is not an unprimeable number, because it can be changed into a prime (351206243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87801559 + ... + 87801562.

Almost surely, 2^351206242 is an apocalyptic number.

351206242 is a deficient number, since it is larger than the sum of its proper divisors (175603124).

351206242 is a wasteful number, since it uses less digits than its factorization.

351206242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175603123.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 351206242 is about 18740.4973786717. The cubic root of 351206242 is about 705.5385399396.

Adding to 351206242 its reverse (242602153), we get a palindrome (593808395).

The spelling of 351206242 in words is "three hundred fifty-one million, two hundred six thousand, two hundred forty-two".