264997746 has 48 divisors (see below), whose sum is σ = 622079640. Its totient is φ = 81525600.

The previous prime is 264997729. The next prime is 264997783. The reversal of 264997746 is 647799462.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5948721 + 259049025 = 2439^2 + 16095^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 264997692 and 264997701.

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 23 ways as a sum of consecutive naturals, for example, 36196 + ... + 42896.

Almost surely, 2^264997746 is an apocalyptic number.

264997746 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 264997746, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (311039820).

264997746 is an abundant number, since it is smaller than the sum of its proper divisors (357081894).

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

264997746 is a wasteful number, since it uses less digits than its factorization.

264997746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6748 (or 6719 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 54.

The square root of 264997746 is about 16278.7513648928. The cubic root of 264997746 is about 642.3140077443.

The spelling of 264997746 in words is "two hundred sixty-four million, nine hundred ninety-seven thousand, seven hundred forty-six".