331430026 has 8 divisors (see below), whose sum is σ = 497538180. Its totient is φ = 165583968.

The previous prime is 331429997. The next prime is 331430093. The reversal of 331430026 is 620034133.

It can be written as a sum of positive squares in 2 ways, for example, as 272217001 + 59213025 = 16499^2 + 7695^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 331429979 and 331430006.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62331 + ... + 67438.

Almost surely, 2^331430026 is an apocalyptic number.

331430026 is a deficient number, since it is larger than the sum of its proper divisors (166108154).

331430026 is a wasteful number, since it uses less digits than its factorization.

331430026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131048.

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 331430026 is about 18205.2197459959. The cubic root of 331430026 is about 692.0390749985.

Adding to 331430026 its reverse (620034133), we get a palindrome (951464159).

The spelling of 331430026 in words is "three hundred thirty-one million, four hundred thirty thousand, twenty-six".