266987424 has 48 divisors (see below), whose sum is σ = 764557920. Its totient is φ = 80904960.

The previous prime is 266987377. The next prime is 266987437. The reversal of 266987424 is 424789662.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

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 7 ways as a sum of consecutive naturals, for example, 125359 + ... + 127470.

It is an arithmetic number, because the mean of its divisors is an integer number (15928290).

Almost surely, 2^266987424 is an apocalyptic number.

266987424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

266987424 is an abundant number, since it is smaller than the sum of its proper divisors (497570496).

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

266987424 is a wasteful number, since it uses less digits than its factorization.

266987424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252853 (or 252845 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 48.

The square root of 266987424 is about 16339.7498144861. The cubic root of 266987424 is about 643.9175594996.

The spelling of 266987424 in words is "two hundred sixty-six million, nine hundred eighty-seven thousand, four hundred twenty-four".