331426 has 4 divisors (see below), whose sum is σ = 497142. Its totient is φ = 165712.

The previous prime is 331423. The next prime is 331447. The reversal of 331426 is 624133.

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., 172225 + 159201 = 415^2 + 399^2 .

It is not an unprimeable number, because it can be changed into a prime (331423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82855 + ... + 82858.

2³³¹⁴²⁶ is an apocalyptic number.

331426 is a deficient number, since it is larger than the sum of its proper divisors (165716).

331426 is a wasteful number, since it uses less digits than its factorization.

331426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165715.

The product of its digits is 432, while the sum is 19.

The square root of 331426 is about 575.6961003863. The cubic root of 331426 is about 69.2036272838.

Adding to 331426 its reverse (624133), we get a palindrome (955559).

It can be divided in two parts, 331 and 426, that added together give a palindrome (757).

The spelling of 331426 in words is "three hundred thirty-one thousand, four hundred twenty-six".