330628749 has 36 divisors (see below), whose sum is σ = 508179168. Its totient is φ = 190705680.

The previous prime is 330628741. The next prime is 330628751. The reversal of 330628749 is 947826033.

It is not a de Polignac number, because 330628749 - 2³ = 330628741 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 330628749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330628741) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1661352 + ... + 1661550.

It is an arithmetic number, because the mean of its divisors is an integer number (14116088).

Almost surely, 2^330628749 is an apocalyptic number.

It is an amenable number.

330628749 is a deficient number, since it is larger than the sum of its proper divisors (177550419).

330628749 is a wasteful number, since it uses less digits than its factorization.

330628749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446 (or 236 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 330628749 is about 18183.1996359277. The cubic root of 330628749 is about 691.4809255418.

The spelling of 330628749 in words is "three hundred thirty million, six hundred twenty-eight thousand, seven hundred forty-nine".