266530402 has 8 divisors (see below), whose sum is σ = 402443712. Its totient is φ = 132382500.

The previous prime is 266530399. The next prime is 266530427. The reversal of 266530402 is 204035662.

It is a happy number.

266530402 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

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 3 ways as a sum of consecutive naturals, for example, 440974 + ... + 441577.

It is an arithmetic number, because the mean of its divisors is an integer number (50305464).

Almost surely, 2^266530402 is an apocalyptic number.

266530402 is a deficient number, since it is larger than the sum of its proper divisors (135913310).

266530402 is a wasteful number, since it uses less digits than its factorization.

266530402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882704.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 266530402 is about 16325.7588491316. The cubic root of 266530402 is about 643.5499359832.

The spelling of 266530402 in words is "two hundred sixty-six million, five hundred thirty thousand, four hundred two".