387786266 has 16 divisors (see below), whose sum is σ = 677320704. Its totient is φ = 163058064.

The previous prime is 387786263. The next prime is 387786313. The reversal of 387786266 is 662687783.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is not an unprimeable number, because it can be changed into a prime (387786263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260570 + ... + 262053.

It is an arithmetic number, because the mean of its divisors is an integer number (42332544).

Almost surely, 2^387786266 is an apocalyptic number.

387786266 is a deficient number, since it is larger than the sum of its proper divisors (289534438).

387786266 is a wasteful number, since it uses less digits than its factorization.

387786266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522685.

The product of its digits is 4064256, while the sum is 53.

The square root of 387786266 is about 19692.2895063017. The cubic root of 387786266 is about 729.2293524876.

The spelling of 387786266 in words is "three hundred eighty-seven million, seven hundred eighty-six thousand, two hundred sixty-six".