331648434 has 24 divisors (see below), whose sum is σ = 773846892. Its totient is φ = 102045600.

The previous prime is 331648433. The next prime is 331648451. The reversal of 331648434 is 434846133.

It is a happy number.

331648434 is a `hidden beast` number, since 3 + 3 + 1 + 648 + 4 + 3 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 329531409 + 2117025 = 18153^2 + 1455^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (331648433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 708417 + ... + 708884.

Almost surely, 2^331648434 is an apocalyptic number.

331648434 is an abundant number, since it is smaller than the sum of its proper divisors (442198458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

331648434 is a wasteful number, since it uses less digits than its factorization.

331648434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1417322 (or 1417319 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

The square root of 331648434 is about 18211.2172575037. The cubic root of 331648434 is about 692.1910564821.

The spelling of 331648434 in words is "three hundred thirty-one million, six hundred forty-eight thousand, four hundred thirty-four".