266202642 has 64 divisors (see below), whose sum is σ = 577142784. Its totient is φ = 81673920.

The previous prime is 266202641. The next prime is 266202659. The reversal of 266202642 is 246202662.

It is not an unprimeable number, because it can be changed into a prime (266202641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 323043 + ... + 323865.

It is an arithmetic number, because the mean of its divisors is an integer number (9017856).

Almost surely, 2^266202642 is an apocalyptic number.

266202642 is an abundant number, since it is smaller than the sum of its proper divisors (310940142).

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

266202642 is a wasteful number, since it uses less digits than its factorization.

266202642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 266202642 is about 16315.7176366840. The cubic root of 266202642 is about 643.2860305692.

The spelling of 266202642 in words is "two hundred sixty-six million, two hundred two thousand, six hundred forty-two".