331794649 has 8 divisors (see below), whose sum is σ = 333456200. Its totient is φ = 330137856.

The previous prime is 331794623. The next prime is 331794691. The reversal of 331794649 is 946497133.

It can be written as a sum of positive squares in 4 ways, for example, as 287811225 + 43983424 = 16965^2 + 6632^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 331794649 - 2⁷ = 331794521 is a prime.

It is a super-2 number, since 2×331794649² = 220175378210066402, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 331794599 and 331794608.

It is not an unprimeable number, because it can be changed into a prime (331794349) 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, 255169 + ... + 256465.

It is an arithmetic number, because the mean of its divisors is an integer number (41682025).

Almost surely, 2^331794649 is an apocalyptic number.

It is an amenable number.

331794649 is a deficient number, since it is larger than the sum of its proper divisors (1661551).

331794649 is a wasteful number, since it uses less digits than its factorization.

331794649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2379.

The product of its digits is 489888, while the sum is 46.

The square root of 331794649 is about 18215.2312365229. The cubic root of 331794649 is about 692.2927644306.

The spelling of 331794649 in words is "three hundred thirty-one million, seven hundred ninety-four thousand, six hundred forty-nine".