331640034 has 16 divisors (see below), whose sum is σ = 723578400. Its totient is φ = 100496960.

The previous prime is 331640009. The next prime is 331640039. The reversal of 331640034 is 430046133.

It is a super-2 number, since 2×331640034² = 219970224303042312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 331639986 and 331640013.

It is not an unprimeable number, because it can be changed into a prime (331640039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2512359 + ... + 2512490.

It is an arithmetic number, because the mean of its divisors is an integer number (45223650).

Almost surely, 2^331640034 is an apocalyptic number.

331640034 is an abundant number, since it is smaller than the sum of its proper divisors (391938366).

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

331640034 is a wasteful number, since it uses less digits than its factorization.

331640034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5024865.

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 331640034 is about 18210.9866289556. The cubic root of 331640034 is about 692.1852124885.

Adding to 331640034 its reverse (430046133), we get a palindrome (761686167).

The spelling of 331640034 in words is "three hundred thirty-one million, six hundred forty thousand, thirty-four".