266269542 has 32 divisors (see below), whose sum is σ = 663945984. Its totient is φ = 69160800.

The previous prime is 266269529. The next prime is 266269547. The reversal of 266269542 is 245962662.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 266269494 and 266269503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266269547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 287709 + ... + 288632.

It is an arithmetic number, because the mean of its divisors is an integer number (20748312).

Almost surely, 2^266269542 is an apocalyptic number.

266269542 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

266269542 is an abundant number, since it is smaller than the sum of its proper divisors (397676442).

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

266269542 is a wasteful number, since it uses less digits than its factorization.

266269542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576364.

The product of its digits is 311040, while the sum is 42.

The square root of 266269542 is about 16317.7676782089. The cubic root of 266269542 is about 643.3399146209.

The spelling of 266269542 in words is "two hundred sixty-six million, two hundred sixty-nine thousand, five hundred forty-two".