266630428 has 12 divisors (see below), whose sum is σ = 466799872. Its totient is φ = 133259040.

The previous prime is 266630369. The next prime is 266630443. The reversal of 266630428 is 824036662.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2268 + ... + 23203.

Almost surely, 2^266630428 is an apocalyptic number.

It is an amenable number.

266630428 is a deficient number, since it is larger than the sum of its proper divisors (200169444).

266630428 is a wasteful number, since it uses less digits than its factorization.

266630428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28092 (or 28090 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 37.

The square root of 266630428 is about 16328.8220028268. The cubic root of 266630428 is about 643.6304317096.

The spelling of 266630428 in words is "two hundred sixty-six million, six hundred thirty thousand, four hundred twenty-eight".