331726680 has 48 divisors (see below), whose sum is σ = 1078112880. Its totient is φ = 88460352.

The previous prime is 331726651. The next prime is 331726687. The reversal of 331726680 is 86627133.

It is a happy number.

331726680 is a `hidden beast` number, since 3 + 317 + 266 + 80 = 666.

It is a super-2 number, since 2×331726680² = 220085180447644800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331726687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 460372 + ... + 461091.

It is an arithmetic number, because the mean of its divisors is an integer number (22460685).

Almost surely, 2^331726680 is an apocalyptic number.

331726680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

331726680 is an abundant number, since it is smaller than the sum of its proper divisors (746386200).

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

331726680 is a wasteful number, since it uses less digits than its factorization.

331726680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921480 (or 921473 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 331726680 is about 18213.3654221289. The cubic root of 331726680 is about 692.2454885422.

The spelling of 331726680 in words is "three hundred thirty-one million, seven hundred twenty-six thousand, six hundred eighty".