330727428 has 24 divisors (see below), whose sum is σ = 857441760. Its totient is φ = 110242440.

The previous prime is 330727427. The next prime is 330727451. The reversal of 330727428 is 824727033.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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

It is a junction number, because it is equal to n+sod(n) for n = 330727392 and 330727401.

It is not an unprimeable number, because it can be changed into a prime (330727427) 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, 1531038 + ... + 1531253.

It is an arithmetic number, because the mean of its divisors is an integer number (35726740).

Almost surely, 2^330727428 is an apocalyptic number.

It is an amenable number.

330727428 is an abundant number, since it is smaller than the sum of its proper divisors (526714332).

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

330727428 is a wasteful number, since it uses less digits than its factorization.

330727428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3062304 (or 3062296 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 36.

The square root of 330727428 is about 18185.9128998244. The cubic root of 330727428 is about 691.5497115132.

The spelling of 330727428 in words is "three hundred thirty million, seven hundred twenty-seven thousand, four hundred twenty-eight".