331749770 has 48 divisors (see below), whose sum is σ = 669822048. Its totient is φ = 117322560.

The previous prime is 331749767. The next prime is 331749779. The reversal of 331749770 is 77947133.

It is a happy number.

331749770 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×331749770² = 220115819790105800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (331749779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 149489 + ... + 151691.

It is an arithmetic number, because the mean of its divisors is an integer number (13954626).

Almost surely, 2^331749770 is an apocalyptic number.

331749770 is an abundant number, since it is smaller than the sum of its proper divisors (338072278).

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

331749770 is a wasteful number, since it uses less digits than its factorization.

331749770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2295 (or 2258 counting only the distinct ones).

The product of its (nonzero) digits is 111132, while the sum is 41.

The square root of 331749770 is about 18213.9992862633. Note that the first 3 decimals coincide. The cubic root of 331749770 is about 692.2615495330.

The spelling of 331749770 in words is "three hundred thirty-one million, seven hundred forty-nine thousand, seven hundred seventy".