351340426 has 4 divisors (see below), whose sum is σ = 527010642. Its totient is φ = 175670212.

The previous prime is 351340421. The next prime is 351340441. The reversal of 351340426 is 624043153.

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., 329241025 + 22099401 = 18145^2 + 4701^2 .

It is a super-2 number, since 2×351340426² = 246880189883722952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 351340394 and 351340403.

It is not an unprimeable number, because it can be changed into a prime (351340421) by changing a digit.

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, 87835105 + ... + 87835108.

Almost surely, 2^351340426 is an apocalyptic number.

351340426 is a deficient number, since it is larger than the sum of its proper divisors (175670216).

351340426 is a wasteful number, since it uses less digits than its factorization.

351340426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175670215.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 351340426 is about 18744.0770911774. The cubic root of 351340426 is about 705.6283826186.

Adding to 351340426 its reverse (624043153), we get a palindrome (975383579).

The spelling of 351340426 in words is "three hundred fifty-one million, three hundred forty thousand, four hundred twenty-six".