351242698 has 4 divisors (see below), whose sum is σ = 526864050. Its totient is φ = 175621348.

The previous prime is 351242687. The next prime is 351242699. The reversal of 351242698 is 896242153.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 896242153 = 2999 ⋅298847.

It can be written as a sum of positive squares in only one way, i.e., 203547289 + 147695409 = 14267^2 + 12153^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 351242698.

It is not an unprimeable number, because it can be changed into a prime (351242699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87810673 + ... + 87810676.

Almost surely, 2^351242698 is an apocalyptic number.

351242698 is a deficient number, since it is larger than the sum of its proper divisors (175621352).

351242698 is a wasteful number, since it uses less digits than its factorization.

351242698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175621351.

The product of its digits is 103680, while the sum is 40.

The square root of 351242698 is about 18741.4700063789. The cubic root of 351242698 is about 705.5629512588.

It can be divided in two parts, 351 and 242698, that added together give a square (243049 = 493²).

The spelling of 351242698 in words is "three hundred fifty-one million, two hundred forty-two thousand, six hundred ninety-eight".