660033426 has 32 divisors (see below), whose sum is σ = 1422687168. Its totient is φ = 202933440.

The previous prime is 660033403. The next prime is 660033467. The reversal of 660033426 is 624330066.

It is a junction number, because it is equal to n+sod(n) for n = 660033393 and 660033402.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 142885 + ... + 147431.

It is an arithmetic number, because the mean of its divisors is an integer number (44458974).

Almost surely, 2^660033426 is an apocalyptic number.

660033426 is an abundant number, since it is smaller than the sum of its proper divisors (762653742).

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

660033426 is a wasteful number, since it uses less digits than its factorization.

660033426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6426.

The product of its (nonzero) digits is 15552, while the sum is 30.

The square root of 660033426 is about 25691.1157017363. The cubic root of 660033426 is about 870.6734671723.

The spelling of 660033426 in words is "six hundred sixty million, thirty-three thousand, four hundred twenty-six".