180428264 has 16 divisors (see below), whose sum is σ = 338583300. Its totient is φ = 90139392.

The previous prime is 180428251. The next prime is 180428267. The reversal of 180428264 is 462824081.

It can be written as a sum of positive squares in 2 ways, for example, as 148596100 + 31832164 = 12190^2 + 5642^2 .

It is not an unprimeable number, because it can be changed into a prime (180428267) 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 3 ways as a sum of consecutive naturals, for example, 1682 + ... + 19070.

Almost surely, 2^180428264 is an apocalyptic number.

It is an amenable number.

180428264 is a deficient number, since it is larger than the sum of its proper divisors (158155036).

180428264 is a wasteful number, since it uses less digits than its factorization.

180428264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18692 (or 18688 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 35.

The square root of 180428264 is about 13432.3588397571. The cubic root of 180428264 is about 565.0690536113.

The spelling of 180428264 in words is "one hundred eighty million, four hundred twenty-eight thousand, two hundred sixty-four".