660934426 has 8 divisors (see below), whose sum is σ = 992025684. Its totient is φ = 330259200.

The previous prime is 660934423. The next prime is 660934453. The reversal of 660934426 is 624439066.

660934426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 632472201 + 28462225 = 25149^2 + 5335^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (660934423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100005 + ... + 106408.

Almost surely, 2^660934426 is an apocalyptic number.

660934426 is a deficient number, since it is larger than the sum of its proper divisors (331091258).

660934426 is a wasteful number, since it uses less digits than its factorization.

660934426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208016.

The product of its (nonzero) digits is 186624, while the sum is 40.

The square root of 660934426 is about 25708.6449662366. The cubic root of 660934426 is about 871.0694673722.

The spelling of 660934426 in words is "six hundred sixty million, nine hundred thirty-four thousand, four hundred twenty-six".