266747040 has 192 divisors, whose sum is σ = 1067109120. Its totient is φ = 60963840.

The previous prime is 266747011. The next prime is 266747057. The reversal of 266747040 is 40747662.

It is a super-3 number, since 3×266747040³ (a number of 26 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 266746986 and 266747004.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25830 + ... + 34650.

It is an arithmetic number, because the mean of its divisors is an integer number (5557860).

Almost surely, 2^266747040 is an apocalyptic number.

266747040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266747040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (533554560).

266747040 is an abundant number, since it is smaller than the sum of its proper divisors (800362080).

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

266747040 is a wasteful number, since it uses less digits than its factorization.

266747040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8852 (or 8838 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 36.

The square root of 266747040 is about 16332.3923538470. The cubic root of 266747040 is about 643.7242495748.

The spelling of 266747040 in words is "two hundred sixty-six million, seven hundred forty-seven thousand, forty".