266425632 has 288 divisors, whose sum is σ = 909800640. Its totient is φ = 75202560.

The previous prime is 266425597. The next prime is 266425661. The reversal of 266425632 is 236524662.

266425632 is a `hidden beast` number, since 2 + 6 + 642 + 5 + 6 + 3 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2746608 + ... + 2746704.

It is an arithmetic number, because the mean of its divisors is an integer number (3159030).

Almost surely, 2^266425632 is an apocalyptic number.

266425632 is a gapful number since it is divisible by the number (22) 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 266425632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (454900320).

266425632 is an abundant number, since it is smaller than the sum of its proper divisors (643375008).

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

266425632 is a wasteful number, since it uses less digits than its factorization.

266425632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161 (or 130 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 266425632 is about 16322.5498008124. The cubic root of 266425632 is about 643.4656009345.

The spelling of 266425632 in words is "two hundred sixty-six million, four hundred twenty-five thousand, six hundred thirty-two".